Home / 862,296.66-1,293,998.40-578,307.78

Finding the Fourth Proportional to 862,296.66, 1,293,998.40 and 578,307.78

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Solution

The fourth proportional to 862,296.66, 1,293,998.40 and 578,307.78 is: 867,832.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,296.66 : 1,293,998.40 = 578,307.78 : x
  2. Step 2: Convert to fraction form
    862,296.66/1,293,998.40 = 578,307.78/x
  3. Step 3: Cross multiply
    862,296.66x = 1,293,998.40 × 578,307.78
  4. Step 4: Simplify right side
    862,296.66x = 748,329,342,027.55
  5. Step 5: Solve for x
    x = 748,329,342,027.55/862,296.66
  6. Step 6: Final answer
    x = 867,832.82

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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.