Home / 1,228,297.32-1,842,618.20-429,397.15

Finding the Fourth Proportional to 1,228,297.32, 1,842,618.20 and 429,397.15

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Solution

The fourth proportional to 1,228,297.32, 1,842,618.20 and 429,397.15 is: 644,155.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,297.32 : 1,842,618.20 = 429,397.15 : x
  2. Step 2: Convert to fraction form
    1,228,297.32/1,842,618.20 = 429,397.15/x
  3. Step 3: Cross multiply
    1,228,297.32x = 1,842,618.20 × 429,397.15
  4. Step 4: Simplify right side
    1,228,297.32x = 791,215,003,618.13
  5. Step 5: Solve for x
    x = 791,215,003,618.13/1,228,297.32
  6. Step 6: Final answer
    x = 644,155.93

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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.