Home / 868,803.60-1,303,205.40-721,837.20

Finding the Fourth Proportional to 868,803.60, 1,303,205.40 and 721,837.20

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Solution

The fourth proportional to 868,803.60, 1,303,205.40 and 721,837.20 is: 1,082,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,803.60 : 1,303,205.40 = 721,837.20 : x
  2. Step 2: Convert to fraction form
    868,803.60/1,303,205.40 = 721,837.20/x
  3. Step 3: Cross multiply
    868,803.60x = 1,303,205.40 × 721,837.20
  4. Step 4: Simplify right side
    868,803.60x = 940,702,136,960.88
  5. Step 5: Solve for x
    x = 940,702,136,960.88/868,803.60
  6. Step 6: Final answer
    x = 1,082,755.80

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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.