Home / 1,348,472.15-1,860,948.14-775,512.78

Finding the Fourth Proportional to 1,348,472.15, 1,860,948.14 and 775,512.78

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Solution

The fourth proportional to 1,348,472.15, 1,860,948.14 and 775,512.78 is: 1,070,240.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,472.15 : 1,860,948.14 = 775,512.78 : x
  2. Step 2: Convert to fraction form
    1,348,472.15/1,860,948.14 = 775,512.78/x
  3. Step 3: Cross multiply
    1,348,472.15x = 1,860,948.14 × 775,512.78
  4. Step 4: Simplify right side
    1,348,472.15x = 1,443,189,071,642.33
  5. Step 5: Solve for x
    x = 1,443,189,071,642.33/1,348,472.15
  6. Step 6: Final answer
    x = 1,070,240.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.