Home / 778,051.20-1,167,076.80-486,013.80

Finding the Fourth Proportional to 778,051.20, 1,167,076.80 and 486,013.80

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Solution

The fourth proportional to 778,051.20, 1,167,076.80 and 486,013.80 is: 729,020.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,051.20 : 1,167,076.80 = 486,013.80 : x
  2. Step 2: Convert to fraction form
    778,051.20/1,167,076.80 = 486,013.80/x
  3. Step 3: Cross multiply
    778,051.20x = 1,167,076.80 × 486,013.80
  4. Step 4: Simplify right side
    778,051.20x = 567,215,430,459.84
  5. Step 5: Solve for x
    x = 567,215,430,459.84/778,051.20
  6. Step 6: Final answer
    x = 729,020.70

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1.5x scale

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.