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Finding the Fourth Proportional to 641,437.84, 884,897.22 and 369,434.44

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Solution

The fourth proportional to 641,437.84, 884,897.22 and 369,434.44 is: 509,654.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,437.84 : 884,897.22 = 369,434.44 : x
  2. Step 2: Convert to fraction form
    641,437.84/884,897.22 = 369,434.44/x
  3. Step 3: Cross multiply
    641,437.84x = 884,897.22 × 369,434.44
  4. Step 4: Simplify right side
    641,437.84x = 326,911,508,928.26
  5. Step 5: Solve for x
    x = 326,911,508,928.26/641,437.84
  6. Step 6: Final answer
    x = 509,654.23

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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.