Home / 1,098,963.40-1,648,445.10-618,698.20

Finding the Fourth Proportional to 1,098,963.40, 1,648,445.10 and 618,698.20

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Solution

The fourth proportional to 1,098,963.40, 1,648,445.10 and 618,698.20 is: 928,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,963.40 : 1,648,445.10 = 618,698.20 : x
  2. Step 2: Convert to fraction form
    1,098,963.40/1,648,445.10 = 618,698.20/x
  3. Step 3: Cross multiply
    1,098,963.40x = 1,648,445.10 × 618,698.20
  4. Step 4: Simplify right side
    1,098,963.40x = 1,019,890,016,168.82
  5. Step 5: Solve for x
    x = 1,019,890,016,168.82/1,098,963.40
  6. Step 6: Final answer
    x = 928,047.30

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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.