Home / 753,418.75-1,039,736.63-409,254.58

Finding the Fourth Proportional to 753,418.75, 1,039,736.63 and 409,254.58

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Solution

The fourth proportional to 753,418.75, 1,039,736.63 and 409,254.58 is: 564,781.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,418.75 : 1,039,736.63 = 409,254.58 : x
  2. Step 2: Convert to fraction form
    753,418.75/1,039,736.63 = 409,254.58/x
  3. Step 3: Cross multiply
    753,418.75x = 1,039,736.63 × 409,254.58
  4. Step 4: Simplify right side
    753,418.75x = 425,516,977,821.27
  5. Step 5: Solve for x
    x = 425,516,977,821.27/753,418.75
  6. Step 6: Final answer
    x = 564,781.51

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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.