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Finding the Fourth Proportional to 486,000.70, 727,688.85 and 486,000.70

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Solution

The fourth proportional to 486,000.70, 727,688.85 and 486,000.70 is: 727,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,000.70 : 727,688.85 = 486,000.70 : x
  2. Step 2: Convert to fraction form
    486,000.70/727,688.85 = 486,000.70/x
  3. Step 3: Cross multiply
    486,000.70x = 727,688.85 × 486,000.70
  4. Step 4: Simplify right side
    486,000.70x = 353,657,290,482.20
  5. Step 5: Solve for x
    x = 353,657,290,482.20/486,000.70
  6. Step 6: Final answer
    x = 727,688.85

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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.