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Finding the Fourth Proportional to 641,603.52, 885,444.32 and 369,713.92

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Solution

The fourth proportional to 641,603.52, 885,444.32 and 369,713.92 is: 510,223.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,603.52 : 885,444.32 = 369,713.92 : x
  2. Step 2: Convert to fraction form
    641,603.52/885,444.32 = 369,713.92/x
  3. Step 3: Cross multiply
    641,603.52x = 885,444.32 × 369,713.92
  4. Step 4: Simplify right side
    641,603.52x = 327,361,090,488.93
  5. Step 5: Solve for x
    x = 327,361,090,488.93/641,603.52
  6. Step 6: Final answer
    x = 510,223.34

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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.