Home / 641,962.95-885,897.96-355,476.88

Finding the Fourth Proportional to 641,962.95, 885,897.96 and 355,476.88

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Solution

The fourth proportional to 641,962.95, 885,897.96 and 355,476.88 is: 490,552.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,962.95 : 885,897.96 = 355,476.88 : x
  2. Step 2: Convert to fraction form
    641,962.95/885,897.96 = 355,476.88/x
  3. Step 3: Cross multiply
    641,962.95x = 885,897.96 × 355,476.88
  4. Step 4: Simplify right side
    641,962.95x = 314,916,242,819.17
  5. Step 5: Solve for x
    x = 314,916,242,819.17/641,962.95
  6. Step 6: Final answer
    x = 490,552.06

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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.