Home / 891,939.46-1,338,113.46-386,585.32

Finding the Fourth Proportional to 891,939.46, 1,338,113.46 and 386,585.32

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Solution

The fourth proportional to 891,939.46, 1,338,113.46 and 386,585.32 is: 579,966.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,939.46 : 1,338,113.46 = 386,585.32 : x
  2. Step 2: Convert to fraction form
    891,939.46/1,338,113.46 = 386,585.32/x
  3. Step 3: Cross multiply
    891,939.46x = 1,338,113.46 × 386,585.32
  4. Step 4: Simplify right side
    891,939.46x = 517,295,020,130.41
  5. Step 5: Solve for x
    x = 517,295,020,130.41/891,939.46
  6. Step 6: Final answer
    x = 579,966.51

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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.