Home / 947,146.02-1,418,449.40-690,290.16

Finding the Fourth Proportional to 947,146.02, 1,418,449.40 and 690,290.16

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Solution

The fourth proportional to 947,146.02, 1,418,449.40 and 690,290.16 is: 1,033,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,146.02 : 1,418,449.40 = 690,290.16 : x
  2. Step 2: Convert to fraction form
    947,146.02/1,418,449.40 = 690,290.16/x
  3. Step 3: Cross multiply
    947,146.02x = 1,418,449.40 × 690,290.16
  4. Step 4: Simplify right side
    947,146.02x = 979,141,663,277.90
  5. Step 5: Solve for x
    x = 979,141,663,277.90/947,146.02
  6. Step 6: Final answer
    x = 1,033,781.11

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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.