Home / 1,123,562.20-1,681,844.10-648,837.40

Finding the Fourth Proportional to 1,123,562.20, 1,681,844.10 and 648,837.40

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Solution

The fourth proportional to 1,123,562.20, 1,681,844.10 and 648,837.40 is: 971,235.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,562.20 : 1,681,844.10 = 648,837.40 : x
  2. Step 2: Convert to fraction form
    1,123,562.20/1,681,844.10 = 648,837.40/x
  3. Step 3: Cross multiply
    1,123,562.20x = 1,681,844.10 × 648,837.40
  4. Step 4: Simplify right side
    1,123,562.20x = 1,091,243,353,049.34
  5. Step 5: Solve for x
    x = 1,091,243,353,049.34/1,123,562.20
  6. Step 6: Final answer
    x = 971,235.37

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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.