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Finding the Fourth Proportional to 634,575.96, 875,589.75 and 376,404.26

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Solution

The fourth proportional to 634,575.96, 875,589.75 and 376,404.26 is: 519,363.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,575.96 : 875,589.75 = 376,404.26 : x
  2. Step 2: Convert to fraction form
    634,575.96/875,589.75 = 376,404.26/x
  3. Step 3: Cross multiply
    634,575.96x = 875,589.75 × 376,404.26
  4. Step 4: Simplify right side
    634,575.96x = 329,575,707,534.39
  5. Step 5: Solve for x
    x = 329,575,707,534.39/634,575.96
  6. Step 6: Final answer
    x = 519,363.68

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Double scale
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Similar ratio
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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.