Home / 700,149.20-1,048,841.40-418,830.80

Finding the Fourth Proportional to 700,149.20, 1,048,841.40 and 418,830.80

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Solution

The fourth proportional to 700,149.20, 1,048,841.40 and 418,830.80 is: 627,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,149.20 : 1,048,841.40 = 418,830.80 : x
  2. Step 2: Convert to fraction form
    700,149.20/1,048,841.40 = 418,830.80/x
  3. Step 3: Cross multiply
    700,149.20x = 1,048,841.40 × 418,830.80
  4. Step 4: Simplify right side
    700,149.20x = 439,287,082,635.12
  5. Step 5: Solve for x
    x = 439,287,082,635.12/700,149.20
  6. Step 6: Final answer
    x = 627,419.25

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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.