Home / 1,117,721-1,676,739.18-359,308.28

Finding the Fourth Proportional to 1,117,721, 1,676,739.18 and 359,308.28

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Solution

The fourth proportional to 1,117,721, 1,676,739.18 and 359,308.28 is: 539,013.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,721 : 1,676,739.18 = 359,308.28 : x
  2. Step 2: Convert to fraction form
    1,117,721/1,676,739.18 = 359,308.28/x
  3. Step 3: Cross multiply
    1,117,721x = 1,676,739.18 × 359,308.28
  4. Step 4: Simplify right side
    1,117,721x = 602,466,270,774.41
  5. Step 5: Solve for x
    x = 602,466,270,774.41/1,117,721
  6. Step 6: Final answer
    x = 539,013.11

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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.