Home / 896,090.80-1,344,136.20-398,426.80

Finding the Fourth Proportional to 896,090.80, 1,344,136.20 and 398,426.80

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Solution

The fourth proportional to 896,090.80, 1,344,136.20 and 398,426.80 is: 597,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,090.80 : 1,344,136.20 = 398,426.80 : x
  2. Step 2: Convert to fraction form
    896,090.80/1,344,136.20 = 398,426.80/x
  3. Step 3: Cross multiply
    896,090.80x = 1,344,136.20 × 398,426.80
  4. Step 4: Simplify right side
    896,090.80x = 535,539,884,930.16
  5. Step 5: Solve for x
    x = 535,539,884,930.16/896,090.80
  6. Step 6: Final answer
    x = 597,640.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.