Home / 933,140.16-1,287,718.08-519,672.96

Finding the Fourth Proportional to 933,140.16, 1,287,718.08 and 519,672.96

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Solution

The fourth proportional to 933,140.16, 1,287,718.08 and 519,672.96 is: 717,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,140.16 : 1,287,718.08 = 519,672.96 : x
  2. Step 2: Convert to fraction form
    933,140.16/1,287,718.08 = 519,672.96/x
  3. Step 3: Cross multiply
    933,140.16x = 1,287,718.08 × 519,672.96
  4. Step 4: Simplify right side
    933,140.16x = 669,192,266,279.12
  5. Step 5: Solve for x
    x = 669,192,266,279.12/933,140.16
  6. Step 6: Final answer
    x = 717,140.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.