Home / 899,389.80-1,347,335.10-543,346.20

Finding the Fourth Proportional to 899,389.80, 1,347,335.10 and 543,346.20

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Solution

The fourth proportional to 899,389.80, 1,347,335.10 and 543,346.20 is: 813,962.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,389.80 : 1,347,335.10 = 543,346.20 : x
  2. Step 2: Convert to fraction form
    899,389.80/1,347,335.10 = 543,346.20/x
  3. Step 3: Cross multiply
    899,389.80x = 1,347,335.10 × 543,346.20
  4. Step 4: Simplify right side
    899,389.80x = 732,069,406,711.62
  5. Step 5: Solve for x
    x = 732,069,406,711.62/899,389.80
  6. Step 6: Final answer
    x = 813,962.32

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Double scale
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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.