Home / 753,137.48-1,039,326.33-408,970.61

Finding the Fourth Proportional to 753,137.48, 1,039,326.33 and 408,970.61

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Solution

The fourth proportional to 753,137.48, 1,039,326.33 and 408,970.61 is: 564,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,137.48 : 1,039,326.33 = 408,970.61 : x
  2. Step 2: Convert to fraction form
    753,137.48/1,039,326.33 = 408,970.61/x
  3. Step 3: Cross multiply
    753,137.48x = 1,039,326.33 × 408,970.61
  4. Step 4: Simplify right side
    753,137.48x = 425,053,917,972.53
  5. Step 5: Solve for x
    x = 425,053,917,972.53/753,137.48
  6. Step 6: Final answer
    x = 564,377.60

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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.