Home / 989,105.40-1,483,658.10-867,070.80

Finding the Fourth Proportional to 989,105.40, 1,483,658.10 and 867,070.80

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Solution

The fourth proportional to 989,105.40, 1,483,658.10 and 867,070.80 is: 1,300,606.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,105.40 : 1,483,658.10 = 867,070.80 : x
  2. Step 2: Convert to fraction form
    989,105.40/1,483,658.10 = 867,070.80/x
  3. Step 3: Cross multiply
    989,105.40x = 1,483,658.10 × 867,070.80
  4. Step 4: Simplify right side
    989,105.40x = 1,286,436,615,693.48
  5. Step 5: Solve for x
    x = 1,286,436,615,693.48/989,105.40
  6. Step 6: Final answer
    x = 1,300,606.20

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Similar ratio
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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.