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Finding the Fourth Proportional to 658,353, 908,527.20 and 356,547

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Solution

The fourth proportional to 658,353, 908,527.20 and 356,547 is: 492,034.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,353 : 908,527.20 = 356,547 : x
  2. Step 2: Convert to fraction form
    658,353/908,527.20 = 356,547/x
  3. Step 3: Cross multiply
    658,353x = 908,527.20 × 356,547
  4. Step 4: Simplify right side
    658,353x = 323,932,647,578.40
  5. Step 5: Solve for x
    x = 323,932,647,578.40/658,353
  6. Step 6: Final answer
    x = 492,034.89

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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.