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Finding the Fourth Proportional to 602,613.72, 831,604.65 and 330,686.16

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Solution

The fourth proportional to 602,613.72, 831,604.65 and 330,686.16 is: 456,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,613.72 : 831,604.65 = 330,686.16 : x
  2. Step 2: Convert to fraction form
    602,613.72/831,604.65 = 330,686.16/x
  3. Step 3: Cross multiply
    602,613.72x = 831,604.65 × 330,686.16
  4. Step 4: Simplify right side
    602,613.72x = 275,000,148,346.64
  5. Step 5: Solve for x
    x = 275,000,148,346.64/602,613.72
  6. Step 6: Final answer
    x = 456,345.65

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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.