Home / 1,272,817.12-1,909,224.88-374,266.24

Finding the Fourth Proportional to 1,272,817.12, 1,909,224.88 and 374,266.24

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Solution

The fourth proportional to 1,272,817.12, 1,909,224.88 and 374,266.24 is: 561,399.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,817.12 : 1,909,224.88 = 374,266.24 : x
  2. Step 2: Convert to fraction form
    1,272,817.12/1,909,224.88 = 374,266.24/x
  3. Step 3: Cross multiply
    1,272,817.12x = 1,909,224.88 × 374,266.24
  4. Step 4: Simplify right side
    1,272,817.12x = 714,558,417,152.05
  5. Step 5: Solve for x
    x = 714,558,417,152.05/1,272,817.12
  6. Step 6: Final answer
    x = 561,399.12

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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.