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Finding the Fourth Proportional to 506,807.28, 760,431.40 and 317,701.04

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Solution

The fourth proportional to 506,807.28, 760,431.40 and 317,701.04 is: 476,689.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,807.28 : 760,431.40 = 317,701.04 : x
  2. Step 2: Convert to fraction form
    506,807.28/760,431.40 = 317,701.04/x
  3. Step 3: Cross multiply
    506,807.28x = 760,431.40 × 317,701.04
  4. Step 4: Simplify right side
    506,807.28x = 241,589,846,628.66
  5. Step 5: Solve for x
    x = 241,589,846,628.66/506,807.28
  6. Step 6: Final answer
    x = 476,689.77

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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.