Home / 879,475.14-1,213,696.23-492,280.93

Finding the Fourth Proportional to 879,475.14, 1,213,696.23 and 492,280.93

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Solution

The fourth proportional to 879,475.14, 1,213,696.23 and 492,280.93 is: 679,359.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,475.14 : 1,213,696.23 = 492,280.93 : x
  2. Step 2: Convert to fraction form
    879,475.14/1,213,696.23 = 492,280.93/x
  3. Step 3: Cross multiply
    879,475.14x = 1,213,696.23 × 492,280.93
  4. Step 4: Simplify right side
    879,475.14x = 597,479,508,841.89
  5. Step 5: Solve for x
    x = 597,479,508,841.89/879,475.14
  6. Step 6: Final answer
    x = 679,359.18

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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.