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Finding the Fourth Proportional to 675,387.23, 932,077.68 and 388,901.17

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Solution

The fourth proportional to 675,387.23, 932,077.68 and 388,901.17 is: 536,708.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,387.23 : 932,077.68 = 388,901.17 : x
  2. Step 2: Convert to fraction form
    675,387.23/932,077.68 = 388,901.17/x
  3. Step 3: Cross multiply
    675,387.23x = 932,077.68 × 388,901.17
  4. Step 4: Simplify right side
    675,387.23x = 362,486,095,622.50
  5. Step 5: Solve for x
    x = 362,486,095,622.50/675,387.23
  6. Step 6: Final answer
    x = 536,708.54

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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.