Home / 779,938.80-1,170,078.30-443,140.80

Finding the Fourth Proportional to 779,938.80, 1,170,078.30 and 443,140.80

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Solution

The fourth proportional to 779,938.80, 1,170,078.30 and 443,140.80 is: 664,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,938.80 : 1,170,078.30 = 443,140.80 : x
  2. Step 2: Convert to fraction form
    779,938.80/1,170,078.30 = 443,140.80/x
  3. Step 3: Cross multiply
    779,938.80x = 1,170,078.30 × 443,140.80
  4. Step 4: Simplify right side
    779,938.80x = 518,509,433,924.64
  5. Step 5: Solve for x
    x = 518,509,433,924.64/779,938.80
  6. Step 6: Final answer
    x = 664,807.85

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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.