Home / 989,066.60-1,486,880.40-859,158.80

Finding the Fourth Proportional to 989,066.60, 1,486,880.40 and 859,158.80

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Solution

The fourth proportional to 989,066.60, 1,486,880.40 and 859,158.80 is: 1,291,587.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,066.60 : 1,486,880.40 = 859,158.80 : x
  2. Step 2: Convert to fraction form
    989,066.60/1,486,880.40 = 859,158.80/x
  3. Step 3: Cross multiply
    989,066.60x = 1,486,880.40 × 859,158.80
  4. Step 4: Simplify right side
    989,066.60x = 1,277,466,380,207.52
  5. Step 5: Solve for x
    x = 1,277,466,380,207.52/989,066.60
  6. Step 6: Final answer
    x = 1,291,587.83

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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.