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Finding the Fourth Proportional to 540,058.40, 744,391.68 and 382,947.20

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Solution

The fourth proportional to 540,058.40, 744,391.68 and 382,947.20 is: 527,836.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,058.40 : 744,391.68 = 382,947.20 : x
  2. Step 2: Convert to fraction form
    540,058.40/744,391.68 = 382,947.20/x
  3. Step 3: Cross multiply
    540,058.40x = 744,391.68 × 382,947.20
  4. Step 4: Simplify right side
    540,058.40x = 285,062,709,559.30
  5. Step 5: Solve for x
    x = 285,062,709,559.30/540,058.40
  6. Step 6: Final answer
    x = 527,836.82

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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.