Home / 699,439.76-1,050,209.40-400,258.16

Finding the Fourth Proportional to 699,439.76, 1,050,209.40 and 400,258.16

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Solution

The fourth proportional to 699,439.76, 1,050,209.40 and 400,258.16 is: 600,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,439.76 : 1,050,209.40 = 400,258.16 : x
  2. Step 2: Convert to fraction form
    699,439.76/1,050,209.40 = 400,258.16/x
  3. Step 3: Cross multiply
    699,439.76x = 1,050,209.40 × 400,258.16
  4. Step 4: Simplify right side
    699,439.76x = 420,354,882,058.70
  5. Step 5: Solve for x
    x = 420,354,882,058.70/699,439.76
  6. Step 6: Final answer
    x = 600,987.97

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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.