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Finding the Fourth Proportional to 692,805.20, 1,037,458.20 and 454,859.60

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Solution

The fourth proportional to 692,805.20, 1,037,458.20 and 454,859.60 is: 681,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,805.20 : 1,037,458.20 = 454,859.60 : x
  2. Step 2: Convert to fraction form
    692,805.20/1,037,458.20 = 454,859.60/x
  3. Step 3: Cross multiply
    692,805.20x = 1,037,458.20 × 454,859.60
  4. Step 4: Simplify right side
    692,805.20x = 471,897,821,868.72
  5. Step 5: Solve for x
    x = 471,897,821,868.72/692,805.20
  6. Step 6: Final answer
    x = 681,140.70

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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.