Home / 990,851.28-1,367,373.54-538,139.04

Finding the Fourth Proportional to 990,851.28, 1,367,373.54 and 538,139.04

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Solution

The fourth proportional to 990,851.28, 1,367,373.54 and 538,139.04 is: 742,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,851.28 : 1,367,373.54 = 538,139.04 : x
  2. Step 2: Convert to fraction form
    990,851.28/1,367,373.54 = 538,139.04/x
  3. Step 3: Cross multiply
    990,851.28x = 1,367,373.54 × 538,139.04
  4. Step 4: Simplify right side
    990,851.28x = 735,837,084,137.00
  5. Step 5: Solve for x
    x = 735,837,084,137.00/990,851.28
  6. Step 6: Final answer
    x = 742,631.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.