Home / 1,258,534.50-1,737,434.25-978,510.78

Finding the Fourth Proportional to 1,258,534.50, 1,737,434.25 and 978,510.78

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Solution

The fourth proportional to 1,258,534.50, 1,737,434.25 and 978,510.78 is: 1,350,855.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,534.50 : 1,737,434.25 = 978,510.78 : x
  2. Step 2: Convert to fraction form
    1,258,534.50/1,737,434.25 = 978,510.78/x
  3. Step 3: Cross multiply
    1,258,534.50x = 1,737,434.25 × 978,510.78
  4. Step 4: Simplify right side
    1,258,534.50x = 1,700,098,143,166.22
  5. Step 5: Solve for x
    x = 1,700,098,143,166.22/1,258,534.50
  6. Step 6: Final answer
    x = 1,350,855.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.