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Finding the Fourth Proportional to 506,012.72, 698,444.40 and 291,304.40

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Solution

The fourth proportional to 506,012.72, 698,444.40 and 291,304.40 is: 402,084.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,012.72 : 698,444.40 = 291,304.40 : x
  2. Step 2: Convert to fraction form
    506,012.72/698,444.40 = 291,304.40/x
  3. Step 3: Cross multiply
    506,012.72x = 698,444.40 × 291,304.40
  4. Step 4: Simplify right side
    506,012.72x = 203,459,926,875.36
  5. Step 5: Solve for x
    x = 203,459,926,875.36/506,012.72
  6. Step 6: Final answer
    x = 402,084.61

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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.