Home / 813,599.40-1,123,214.02-555,863.88

Finding the Fourth Proportional to 813,599.40, 1,123,214.02 and 555,863.88

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Solution

The fourth proportional to 813,599.40, 1,123,214.02 and 555,863.88 is: 767,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,599.40 : 1,123,214.02 = 555,863.88 : x
  2. Step 2: Convert to fraction form
    813,599.40/1,123,214.02 = 555,863.88/x
  3. Step 3: Cross multiply
    813,599.40x = 1,123,214.02 × 555,863.88
  4. Step 4: Simplify right side
    813,599.40x = 624,354,103,227.60
  5. Step 5: Solve for x
    x = 624,354,103,227.60/813,599.40
  6. Step 6: Final answer
    x = 767,397.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.