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Finding the Fourth Proportional to 438,503.28, 604,630.08 and 323,947.68

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Solution

The fourth proportional to 438,503.28, 604,630.08 and 323,947.68 is: 446,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,503.28 : 604,630.08 = 323,947.68 : x
  2. Step 2: Convert to fraction form
    438,503.28/604,630.08 = 323,947.68/x
  3. Step 3: Cross multiply
    438,503.28x = 604,630.08 × 323,947.68
  4. Step 4: Simplify right side
    438,503.28x = 195,868,511,674.21
  5. Step 5: Solve for x
    x = 195,868,511,674.21/438,503.28
  6. Step 6: Final answer
    x = 446,675.13

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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.