Home / 1,332,642.40-1,998,484.80-385,817.20

Finding the Fourth Proportional to 1,332,642.40, 1,998,484.80 and 385,817.20

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Solution

The fourth proportional to 1,332,642.40, 1,998,484.80 and 385,817.20 is: 578,587.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,642.40 : 1,998,484.80 = 385,817.20 : x
  2. Step 2: Convert to fraction form
    1,332,642.40/1,998,484.80 = 385,817.20/x
  3. Step 3: Cross multiply
    1,332,642.40x = 1,998,484.80 × 385,817.20
  4. Step 4: Simplify right side
    1,332,642.40x = 771,049,809,778.56
  5. Step 5: Solve for x
    x = 771,049,809,778.56/1,332,642.40
  6. Step 6: Final answer
    x = 578,587.18

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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.