Home / 1,142,861.40-1,714,531.86-432,873.72

Finding the Fourth Proportional to 1,142,861.40, 1,714,531.86 and 432,873.72

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Solution

The fourth proportional to 1,142,861.40, 1,714,531.86 and 432,873.72 is: 649,401.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,861.40 : 1,714,531.86 = 432,873.72 : x
  2. Step 2: Convert to fraction form
    1,142,861.40/1,714,531.86 = 432,873.72/x
  3. Step 3: Cross multiply
    1,142,861.40x = 1,714,531.86 × 432,873.72
  4. Step 4: Simplify right side
    1,142,861.40x = 742,175,784,296.72
  5. Step 5: Solve for x
    x = 742,175,784,296.72/1,142,861.40
  6. Step 6: Final answer
    x = 649,401.39

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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.