Home / 1,087,337.60-1,631,225.10-911,065.40

Finding the Fourth Proportional to 1,087,337.60, 1,631,225.10 and 911,065.40

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Solution

The fourth proportional to 1,087,337.60, 1,631,225.10 and 911,065.40 is: 1,366,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,337.60 : 1,631,225.10 = 911,065.40 : x
  2. Step 2: Convert to fraction form
    1,087,337.60/1,631,225.10 = 911,065.40/x
  3. Step 3: Cross multiply
    1,087,337.60x = 1,631,225.10 × 911,065.40
  4. Step 4: Simplify right side
    1,087,337.60x = 1,486,152,748,221.54
  5. Step 5: Solve for x
    x = 1,486,152,748,221.54/1,087,337.60
  6. Step 6: Final answer
    x = 1,366,781.35

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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.