Home / 1,480,020.80-2,220,104.10-771,432.80

Finding the Fourth Proportional to 1,480,020.80, 2,220,104.10 and 771,432.80

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Solution

The fourth proportional to 1,480,020.80, 2,220,104.10 and 771,432.80 is: 1,157,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480,020.80 : 2,220,104.10 = 771,432.80 : x
  2. Step 2: Convert to fraction form
    1,480,020.80/2,220,104.10 = 771,432.80/x
  3. Step 3: Cross multiply
    1,480,020.80x = 2,220,104.10 × 771,432.80
  4. Step 4: Simplify right side
    1,480,020.80x = 1,712,661,122,154.48
  5. Step 5: Solve for x
    x = 1,712,661,122,154.48/1,480,020.80
  6. Step 6: Final answer
    x = 1,157,187.20

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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.