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Finding the Fourth Proportional to 657,655.70, 985,991.48 and 358,474.10

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Solution

The fourth proportional to 657,655.70, 985,991.48 and 358,474.10 is: 537,442.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,655.70 : 985,991.48 = 358,474.10 : x
  2. Step 2: Convert to fraction form
    657,655.70/985,991.48 = 358,474.10/x
  3. Step 3: Cross multiply
    657,655.70x = 985,991.48 × 358,474.10
  4. Step 4: Simplify right side
    657,655.70x = 353,452,406,608.30
  5. Step 5: Solve for x
    x = 353,452,406,608.30/657,655.70
  6. Step 6: Final answer
    x = 537,442.93

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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.