Home / 1,127,319.30-1,687,042.35-788,771.70

Finding the Fourth Proportional to 1,127,319.30, 1,687,042.35 and 788,771.70

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Solution

The fourth proportional to 1,127,319.30, 1,687,042.35 and 788,771.70 is: 1,180,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,319.30 : 1,687,042.35 = 788,771.70 : x
  2. Step 2: Convert to fraction form
    1,127,319.30/1,687,042.35 = 788,771.70/x
  3. Step 3: Cross multiply
    1,127,319.30x = 1,687,042.35 × 788,771.70
  4. Step 4: Simplify right side
    1,127,319.30x = 1,330,691,262,381.49
  5. Step 5: Solve for x
    x = 1,330,691,262,381.49/1,127,319.30
  6. Step 6: Final answer
    x = 1,180,403.16

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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.