Home / 742,887.16-1,025,247.72-420,654.04

Finding the Fourth Proportional to 742,887.16, 1,025,247.72 and 420,654.04

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Solution

The fourth proportional to 742,887.16, 1,025,247.72 and 420,654.04 is: 580,538.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,887.16 : 1,025,247.72 = 420,654.04 : x
  2. Step 2: Convert to fraction form
    742,887.16/1,025,247.72 = 420,654.04/x
  3. Step 3: Cross multiply
    742,887.16x = 1,025,247.72 × 420,654.04
  4. Step 4: Simplify right side
    742,887.16x = 431,274,595,418.79
  5. Step 5: Solve for x
    x = 431,274,595,418.79/742,887.16
  6. Step 6: Final answer
    x = 580,538.50

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1.5x scale

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.