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Finding the Fourth Proportional to 634,359.60, 875,372.76 and 347,820.24

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Solution

The fourth proportional to 634,359.60, 875,372.76 and 347,820.24 is: 479,968.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,359.60 : 875,372.76 = 347,820.24 : x
  2. Step 2: Convert to fraction form
    634,359.60/875,372.76 = 347,820.24/x
  3. Step 3: Cross multiply
    634,359.60x = 875,372.76 × 347,820.24
  4. Step 4: Simplify right side
    634,359.60x = 304,472,363,472.66
  5. Step 5: Solve for x
    x = 304,472,363,472.66/634,359.60
  6. Step 6: Final answer
    x = 479,968.09

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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.