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Finding the Fourth Proportional to 658,356.61, 908,532.12 and 356,550.61

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Solution

The fourth proportional to 658,356.61, 908,532.12 and 356,550.61 is: 492,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,356.61 : 908,532.12 = 356,550.61 : x
  2. Step 2: Convert to fraction form
    658,356.61/908,532.12 = 356,550.61/x
  3. Step 3: Cross multiply
    658,356.61x = 908,532.12 × 356,550.61
  4. Step 4: Simplify right side
    658,356.61x = 323,937,681,357.03
  5. Step 5: Solve for x
    x = 323,937,681,357.03/658,356.61
  6. Step 6: Final answer
    x = 492,039.84

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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.