Home / 1,222,158.40-1,834,987.20-690,717.40

Finding the Fourth Proportional to 1,222,158.40, 1,834,987.20 and 690,717.40

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Solution

The fourth proportional to 1,222,158.40, 1,834,987.20 and 690,717.40 is: 1,037,064.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,158.40 : 1,834,987.20 = 690,717.40 : x
  2. Step 2: Convert to fraction form
    1,222,158.40/1,834,987.20 = 690,717.40/x
  3. Step 3: Cross multiply
    1,222,158.40x = 1,834,987.20 × 690,717.40
  4. Step 4: Simplify right side
    1,222,158.40x = 1,267,457,587,817.28
  5. Step 5: Solve for x
    x = 1,267,457,587,817.28/1,222,158.40
  6. Step 6: Final answer
    x = 1,037,064.91

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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.