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Finding the Fourth Proportional to 628,038.70, 866,699.76 and 341,565.10

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Solution

The fourth proportional to 628,038.70, 866,699.76 and 341,565.10 is: 471,363.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,038.70 : 866,699.76 = 341,565.10 : x
  2. Step 2: Convert to fraction form
    628,038.70/866,699.76 = 341,565.10/x
  3. Step 3: Cross multiply
    628,038.70x = 866,699.76 × 341,565.10
  4. Step 4: Simplify right side
    628,038.70x = 296,034,390,194.38
  5. Step 5: Solve for x
    x = 296,034,390,194.38/628,038.70
  6. Step 6: Final answer
    x = 471,363.29

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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.