Home / 753,417.75-1,039,735.25-409,253.58

Finding the Fourth Proportional to 753,417.75, 1,039,735.25 and 409,253.58

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Solution

The fourth proportional to 753,417.75, 1,039,735.25 and 409,253.58 is: 564,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,417.75 : 1,039,735.25 = 409,253.58 : x
  2. Step 2: Convert to fraction form
    753,417.75/1,039,735.25 = 409,253.58/x
  3. Step 3: Cross multiply
    753,417.75x = 1,039,735.25 × 409,253.58
  4. Step 4: Simplify right side
    753,417.75x = 425,515,371,268.43
  5. Step 5: Solve for x
    x = 425,515,371,268.43/753,417.75
  6. Step 6: Final answer
    x = 564,780.13

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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.