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Finding the Fourth Proportional to 897,920.50, 1,346,847.95 and 266,817.91

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Solution

The fourth proportional to 897,920.50, 1,346,847.95 and 266,817.91 is: 400,217.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,920.50 : 1,346,847.95 = 266,817.91 : x
  2. Step 2: Convert to fraction form
    897,920.50/1,346,847.95 = 266,817.91/x
  3. Step 3: Cross multiply
    897,920.50x = 1,346,847.95 × 266,817.91
  4. Step 4: Simplify right side
    897,920.50x = 359,363,157,806.86
  5. Step 5: Solve for x
    x = 359,363,157,806.86/897,920.50
  6. Step 6: Final answer
    x = 400,217.12

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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.