Home / 1,260,937.70-1,891,406.55-788,156.90

Finding the Fourth Proportional to 1,260,937.70, 1,891,406.55 and 788,156.90

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Solution

The fourth proportional to 1,260,937.70, 1,891,406.55 and 788,156.90 is: 1,182,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,937.70 : 1,891,406.55 = 788,156.90 : x
  2. Step 2: Convert to fraction form
    1,260,937.70/1,891,406.55 = 788,156.90/x
  3. Step 3: Cross multiply
    1,260,937.70x = 1,891,406.55 × 788,156.90
  4. Step 4: Simplify right side
    1,260,937.70x = 1,490,725,123,087.70
  5. Step 5: Solve for x
    x = 1,490,725,123,087.70/1,260,937.70
  6. Step 6: Final answer
    x = 1,182,235.35

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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.