Home / 1,389,335.20-2,084,002.80-442,775.20

Finding the Fourth Proportional to 1,389,335.20, 2,084,002.80 and 442,775.20

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Solution

The fourth proportional to 1,389,335.20, 2,084,002.80 and 442,775.20 is: 664,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,335.20 : 2,084,002.80 = 442,775.20 : x
  2. Step 2: Convert to fraction form
    1,389,335.20/2,084,002.80 = 442,775.20/x
  3. Step 3: Cross multiply
    1,389,335.20x = 2,084,002.80 × 442,775.20
  4. Step 4: Simplify right side
    1,389,335.20x = 922,744,756,570.56
  5. Step 5: Solve for x
    x = 922,744,756,570.56/1,389,335.20
  6. Step 6: Final answer
    x = 664,162.80

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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.