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Finding the Fourth Proportional to 602,688.60, 831,655.20 and 357,631.04

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Solution

The fourth proportional to 602,688.60, 831,655.20 and 357,631.04 is: 493,498.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,688.60 : 831,655.20 = 357,631.04 : x
  2. Step 2: Convert to fraction form
    602,688.60/831,655.20 = 357,631.04/x
  3. Step 3: Cross multiply
    602,688.60x = 831,655.20 × 357,631.04
  4. Step 4: Simplify right side
    602,688.60x = 297,425,714,097.41
  5. Step 5: Solve for x
    x = 297,425,714,097.41/602,688.60
  6. Step 6: Final answer
    x = 493,498.16

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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.