Home / 1,105,121.70-1,657,682.55-631,854.90

Finding the Fourth Proportional to 1,105,121.70, 1,657,682.55 and 631,854.90

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Solution

The fourth proportional to 1,105,121.70, 1,657,682.55 and 631,854.90 is: 947,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,121.70 : 1,657,682.55 = 631,854.90 : x
  2. Step 2: Convert to fraction form
    1,105,121.70/1,657,682.55 = 631,854.90/x
  3. Step 3: Cross multiply
    1,105,121.70x = 1,657,682.55 × 631,854.90
  4. Step 4: Simplify right side
    1,105,121.70x = 1,047,414,841,862.00
  5. Step 5: Solve for x
    x = 1,047,414,841,862.00/1,105,121.70
  6. Step 6: Final answer
    x = 947,782.35

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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.