Home / 918,322.38-1,267,223.40-510,397.74

Finding the Fourth Proportional to 918,322.38, 1,267,223.40 and 510,397.74

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Solution

The fourth proportional to 918,322.38, 1,267,223.40 and 510,397.74 is: 704,314.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,322.38 : 1,267,223.40 = 510,397.74 : x
  2. Step 2: Convert to fraction form
    918,322.38/1,267,223.40 = 510,397.74/x
  3. Step 3: Cross multiply
    918,322.38x = 1,267,223.40 × 510,397.74
  4. Step 4: Simplify right side
    918,322.38x = 646,787,959,435.12
  5. Step 5: Solve for x
    x = 646,787,959,435.12/918,322.38
  6. Step 6: Final answer
    x = 704,314.71

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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.