Home / 891,938.46-1,338,111.96-386,584.32

Finding the Fourth Proportional to 891,938.46, 1,338,111.96 and 386,584.32

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Solution

The fourth proportional to 891,938.46, 1,338,111.96 and 386,584.32 is: 579,965.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,938.46 : 1,338,111.96 = 386,584.32 : x
  2. Step 2: Convert to fraction form
    891,938.46/1,338,111.96 = 386,584.32/x
  3. Step 3: Cross multiply
    891,938.46x = 1,338,111.96 × 386,584.32
  4. Step 4: Simplify right side
    891,938.46x = 517,293,102,140.47
  5. Step 5: Solve for x
    x = 517,293,102,140.47/891,938.46
  6. Step 6: Final answer
    x = 579,965.01

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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.