Home / 1,127,008.40-1,689,977.42-653,838.80

Finding the Fourth Proportional to 1,127,008.40, 1,689,977.42 and 653,838.80

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Solution

The fourth proportional to 1,127,008.40, 1,689,977.42 and 653,838.80 is: 980,447.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,008.40 : 1,689,977.42 = 653,838.80 : x
  2. Step 2: Convert to fraction form
    1,127,008.40/1,689,977.42 = 653,838.80/x
  3. Step 3: Cross multiply
    1,127,008.40x = 1,689,977.42 × 653,838.80
  4. Step 4: Simplify right side
    1,127,008.40x = 1,104,972,808,319.90
  5. Step 5: Solve for x
    x = 1,104,972,808,319.90/1,127,008.40
  6. Step 6: Final answer
    x = 980,447.71

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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.