Home / 1,227,489.30-1,838,123.55-978,657.30

Finding the Fourth Proportional to 1,227,489.30, 1,838,123.55 and 978,657.30

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Solution

The fourth proportional to 1,227,489.30, 1,838,123.55 and 978,657.30 is: 1,465,506.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,489.30 : 1,838,123.55 = 978,657.30 : x
  2. Step 2: Convert to fraction form
    1,227,489.30/1,838,123.55 = 978,657.30/x
  3. Step 3: Cross multiply
    1,227,489.30x = 1,838,123.55 × 978,657.30
  4. Step 4: Simplify right side
    1,227,489.30x = 1,798,893,030,509.42
  5. Step 5: Solve for x
    x = 1,798,893,030,509.42/1,227,489.30
  6. Step 6: Final answer
    x = 1,465,506.08

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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.