Home / 1,009,638.80-1,514,458.20-921,065.30

Finding the Fourth Proportional to 1,009,638.80, 1,514,458.20 and 921,065.30

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Solution

The fourth proportional to 1,009,638.80, 1,514,458.20 and 921,065.30 is: 1,381,597.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,638.80 : 1,514,458.20 = 921,065.30 : x
  2. Step 2: Convert to fraction form
    1,009,638.80/1,514,458.20 = 921,065.30/x
  3. Step 3: Cross multiply
    1,009,638.80x = 1,514,458.20 × 921,065.30
  4. Step 4: Simplify right side
    1,009,638.80x = 1,394,914,896,320.46
  5. Step 5: Solve for x
    x = 1,394,914,896,320.46/1,009,638.80
  6. Step 6: Final answer
    x = 1,381,597.95

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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.