Home / 779,719.60-1,169,968.20-443,018.80

Finding the Fourth Proportional to 779,719.60, 1,169,968.20 and 443,018.80

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Solution

The fourth proportional to 779,719.60, 1,169,968.20 and 443,018.80 is: 664,749.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,719.60 : 1,169,968.20 = 443,018.80 : x
  2. Step 2: Convert to fraction form
    779,719.60/1,169,968.20 = 443,018.80/x
  3. Step 3: Cross multiply
    779,719.60x = 1,169,968.20 × 443,018.80
  4. Step 4: Simplify right side
    779,719.60x = 518,317,908,002.16
  5. Step 5: Solve for x
    x = 518,317,908,002.16/779,719.60
  6. Step 6: Final answer
    x = 664,749.11

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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.