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Finding the Fourth Proportional to 634,503.78, 875,616.48 and 348,026.22

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Solution

The fourth proportional to 634,503.78, 875,616.48 and 348,026.22 is: 480,276.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,503.78 : 875,616.48 = 348,026.22 : x
  2. Step 2: Convert to fraction form
    634,503.78/875,616.48 = 348,026.22/x
  3. Step 3: Cross multiply
    634,503.78x = 875,616.48 × 348,026.22
  4. Step 4: Simplify right side
    634,503.78x = 304,737,493,704.11
  5. Step 5: Solve for x
    x = 304,737,493,704.11/634,503.78
  6. Step 6: Final answer
    x = 480,276.88

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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.