Home / 1,038,412.20-1,432,949.04-579,490.78

Finding the Fourth Proportional to 1,038,412.20, 1,432,949.04 and 579,490.78

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Solution

The fourth proportional to 1,038,412.20, 1,432,949.04 and 579,490.78 is: 799,663.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,412.20 : 1,432,949.04 = 579,490.78 : x
  2. Step 2: Convert to fraction form
    1,038,412.20/1,432,949.04 = 579,490.78/x
  3. Step 3: Cross multiply
    1,038,412.20x = 1,432,949.04 × 579,490.78
  4. Step 4: Simplify right side
    1,038,412.20x = 830,380,756,889.85
  5. Step 5: Solve for x
    x = 830,380,756,889.85/1,038,412.20
  6. Step 6: Final answer
    x = 799,663.91

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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.