Home / 639,254.90-882,503.40-466,979.45

Finding the Fourth Proportional to 639,254.90, 882,503.40 and 466,979.45

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Solution

The fourth proportional to 639,254.90, 882,503.40 and 466,979.45 is: 644,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,254.90 : 882,503.40 = 466,979.45 : x
  2. Step 2: Convert to fraction form
    639,254.90/882,503.40 = 466,979.45/x
  3. Step 3: Cross multiply
    639,254.90x = 882,503.40 × 466,979.45
  4. Step 4: Simplify right side
    639,254.90x = 412,110,947,942.61
  5. Step 5: Solve for x
    x = 412,110,947,942.61/639,254.90
  6. Step 6: Final answer
    x = 644,673.90

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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.