Home / 457,941.12-687,306.96-317,798.16

Finding the Fourth Proportional to 457,941.12, 687,306.96 and 317,798.16

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Solution

The fourth proportional to 457,941.12, 687,306.96 and 317,798.16 is: 476,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,941.12 : 687,306.96 = 317,798.16 : x
  2. Step 2: Convert to fraction form
    457,941.12/687,306.96 = 317,798.16/x
  3. Step 3: Cross multiply
    457,941.12x = 687,306.96 × 317,798.16
  4. Step 4: Simplify right side
    457,941.12x = 218,424,887,243.19
  5. Step 5: Solve for x
    x = 218,424,887,243.19/457,941.12
  6. Step 6: Final answer
    x = 476,971.55

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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.