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Finding the Fourth Proportional to 634,302.72, 875,295 and 347,816.70

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Solution

The fourth proportional to 634,302.72, 875,295 and 347,816.70 is: 479,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,302.72 : 875,295 = 347,816.70 : x
  2. Step 2: Convert to fraction form
    634,302.72/875,295 = 347,816.70/x
  3. Step 3: Cross multiply
    634,302.72x = 875,295 × 347,816.70
  4. Step 4: Simplify right side
    634,302.72x = 304,442,218,426.50
  5. Step 5: Solve for x
    x = 304,442,218,426.50/634,302.72
  6. Step 6: Final answer
    x = 479,963.60

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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.