Home / 989,079.40-1,483,862.10-279,098.20

Finding the Fourth Proportional to 989,079.40, 1,483,862.10 and 279,098.20

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Solution

The fourth proportional to 989,079.40, 1,483,862.10 and 279,098.20 is: 418,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,079.40 : 1,483,862.10 = 279,098.20 : x
  2. Step 2: Convert to fraction form
    989,079.40/1,483,862.10 = 279,098.20/x
  3. Step 3: Cross multiply
    989,079.40x = 1,483,862.10 × 279,098.20
  4. Step 4: Simplify right side
    989,079.40x = 414,143,241,158.22
  5. Step 5: Solve for x
    x = 414,143,241,158.22/989,079.40
  6. Step 6: Final answer
    x = 418,715.87

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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.