Home / 753,175.45-1,039,390.31-413,643.70

Finding the Fourth Proportional to 753,175.45, 1,039,390.31 and 413,643.70

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Solution

The fourth proportional to 753,175.45, 1,039,390.31 and 413,643.70 is: 570,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,175.45 : 1,039,390.31 = 413,643.70 : x
  2. Step 2: Convert to fraction form
    753,175.45/1,039,390.31 = 413,643.70/x
  3. Step 3: Cross multiply
    753,175.45x = 1,039,390.31 × 413,643.70
  4. Step 4: Simplify right side
    753,175.45x = 429,937,246,307.38
  5. Step 5: Solve for x
    x = 429,937,246,307.38/753,175.45
  6. Step 6: Final answer
    x = 570,832.80

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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.