Home / 1,521,158.80-2,098,540.04-917,211.28

Finding the Fourth Proportional to 1,521,158.80, 2,098,540.04 and 917,211.28

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Solution

The fourth proportional to 1,521,158.80, 2,098,540.04 and 917,211.28 is: 1,265,354.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,158.80 : 2,098,540.04 = 917,211.28 : x
  2. Step 2: Convert to fraction form
    1,521,158.80/2,098,540.04 = 917,211.28/x
  3. Step 3: Cross multiply
    1,521,158.80x = 2,098,540.04 × 917,211.28
  4. Step 4: Simplify right side
    1,521,158.80x = 1,924,804,596,219.65
  5. Step 5: Solve for x
    x = 1,924,804,596,219.65/1,521,158.80
  6. Step 6: Final answer
    x = 1,265,354.15

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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.