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Finding the Fourth Proportional to 497,315.70, 745,973.55 and 442,203.30

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Solution

The fourth proportional to 497,315.70, 745,973.55 and 442,203.30 is: 663,304.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,315.70 : 745,973.55 = 442,203.30 : x
  2. Step 2: Convert to fraction form
    497,315.70/745,973.55 = 442,203.30/x
  3. Step 3: Cross multiply
    497,315.70x = 745,973.55 × 442,203.30
  4. Step 4: Simplify right side
    497,315.70x = 329,871,965,522.72
  5. Step 5: Solve for x
    x = 329,871,965,522.72/497,315.70
  6. Step 6: Final answer
    x = 663,304.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.