Home / 1,068,915.97-1,603,373.55-429,219.52

Finding the Fourth Proportional to 1,068,915.97, 1,603,373.55 and 429,219.52

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Solution

The fourth proportional to 1,068,915.97, 1,603,373.55 and 429,219.52 is: 643,829.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,915.97 : 1,603,373.55 = 429,219.52 : x
  2. Step 2: Convert to fraction form
    1,068,915.97/1,603,373.55 = 429,219.52/x
  3. Step 3: Cross multiply
    1,068,915.97x = 1,603,373.55 × 429,219.52
  4. Step 4: Simplify right side
    1,068,915.97x = 688,199,225,511.70
  5. Step 5: Solve for x
    x = 688,199,225,511.70/1,068,915.97
  6. Step 6: Final answer
    x = 643,829.12

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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.