Home / 772,575.40-1,158,863.10-679,186.60

Finding the Fourth Proportional to 772,575.40, 1,158,863.10 and 679,186.60

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Solution

The fourth proportional to 772,575.40, 1,158,863.10 and 679,186.60 is: 1,018,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,575.40 : 1,158,863.10 = 679,186.60 : x
  2. Step 2: Convert to fraction form
    772,575.40/1,158,863.10 = 679,186.60/x
  3. Step 3: Cross multiply
    772,575.40x = 1,158,863.10 × 679,186.60
  4. Step 4: Simplify right side
    772,575.40x = 787,084,288,754.46
  5. Step 5: Solve for x
    x = 787,084,288,754.46/772,575.40
  6. Step 6: Final answer
    x = 1,018,779.90

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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.