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Finding the Fourth Proportional to 545.62, 753.72 and 434.95

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Solution

The fourth proportional to 545.62, 753.72 and 434.95 is: 600.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.62 : 753.72 = 434.95 : x
  2. Step 2: Convert to fraction form
    545.62/753.72 = 434.95/x
  3. Step 3: Cross multiply
    545.62x = 753.72 × 434.95
  4. Step 4: Simplify right side
    545.62x = 327,826.75
  5. Step 5: Solve for x
    x = 327,826.75/545.62
  6. Step 6: Final answer
    x = 600.84

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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.