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Finding the Fourth Proportional to 704,129.58, 971,699.08 and 381,839.58

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Solution

The fourth proportional to 704,129.58, 971,699.08 and 381,839.58 is: 526,938.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,129.58 : 971,699.08 = 381,839.58 : x
  2. Step 2: Convert to fraction form
    704,129.58/971,699.08 = 381,839.58/x
  3. Step 3: Cross multiply
    704,129.58x = 971,699.08 × 381,839.58
  4. Step 4: Simplify right side
    704,129.58x = 371,033,168,593.59
  5. Step 5: Solve for x
    x = 371,033,168,593.59/704,129.58
  6. Step 6: Final answer
    x = 526,938.76

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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.