Home / 1,270,870.70-1,906,306.05-429,410.30

Finding the Fourth Proportional to 1,270,870.70, 1,906,306.05 and 429,410.30

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Solution

The fourth proportional to 1,270,870.70, 1,906,306.05 and 429,410.30 is: 644,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,870.70 : 1,906,306.05 = 429,410.30 : x
  2. Step 2: Convert to fraction form
    1,270,870.70/1,906,306.05 = 429,410.30/x
  3. Step 3: Cross multiply
    1,270,870.70x = 1,906,306.05 × 429,410.30
  4. Step 4: Simplify right side
    1,270,870.70x = 818,587,452,822.32
  5. Step 5: Solve for x
    x = 818,587,452,822.32/1,270,870.70
  6. Step 6: Final answer
    x = 644,115.45

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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.