Home / 879,475.17-1,213,696.28-492,280.95

Finding the Fourth Proportional to 879,475.17, 1,213,696.28 and 492,280.95

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Solution

The fourth proportional to 879,475.17, 1,213,696.28 and 492,280.95 is: 679,359.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,475.17 : 1,213,696.28 = 492,280.95 : x
  2. Step 2: Convert to fraction form
    879,475.17/1,213,696.28 = 492,280.95/x
  3. Step 3: Cross multiply
    879,475.17x = 1,213,696.28 × 492,280.95
  4. Step 4: Simplify right side
    879,475.17x = 597,479,557,729.87
  5. Step 5: Solve for x
    x = 597,479,557,729.87/879,475.17
  6. Step 6: Final answer
    x = 679,359.21

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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.