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Finding the Fourth Proportional to 859,751.40, 1,288,071.90 and 735,335.40

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Solution

The fourth proportional to 859,751.40, 1,288,071.90 and 735,335.40 is: 1,101,672.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,751.40 : 1,288,071.90 = 735,335.40 : x
  2. Step 2: Convert to fraction form
    859,751.40/1,288,071.90 = 735,335.40/x
  3. Step 3: Cross multiply
    859,751.40x = 1,288,071.90 × 735,335.40
  4. Step 4: Simplify right side
    859,751.40x = 947,164,865,815.26
  5. Step 5: Solve for x
    x = 947,164,865,815.26/859,751.40
  6. Step 6: Final answer
    x = 1,101,672.96

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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.