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Finding the Fourth Proportional to 502,697.56, 754,056.06 and 402,392.20

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Solution

The fourth proportional to 502,697.56, 754,056.06 and 402,392.20 is: 603,596.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,697.56 : 754,056.06 = 402,392.20 : x
  2. Step 2: Convert to fraction form
    502,697.56/754,056.06 = 402,392.20/x
  3. Step 3: Cross multiply
    502,697.56x = 754,056.06 × 402,392.20
  4. Step 4: Simplify right side
    502,697.56x = 303,426,276,906.73
  5. Step 5: Solve for x
    x = 303,426,276,906.73/502,697.56
  6. Step 6: Final answer
    x = 603,596.08

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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.