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Finding the Fourth Proportional to 632,578.88, 873,319.74 and 418,340.36

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Solution

The fourth proportional to 632,578.88, 873,319.74 and 418,340.36 is: 577,548.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,578.88 : 873,319.74 = 418,340.36 : x
  2. Step 2: Convert to fraction form
    632,578.88/873,319.74 = 418,340.36/x
  3. Step 3: Cross multiply
    632,578.88x = 873,319.74 × 418,340.36
  4. Step 4: Simplify right side
    632,578.88x = 365,344,894,426.71
  5. Step 5: Solve for x
    x = 365,344,894,426.71/632,578.88
  6. Step 6: Final answer
    x = 577,548.36

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1.5x scale

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.