Home / 753,478.00-1,039,810.97-409,320.74

Finding the Fourth Proportional to 753,478.00, 1,039,810.97 and 409,320.74

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Solution

The fourth proportional to 753,478.00, 1,039,810.97 and 409,320.74 is: 564,868.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,478.00 : 1,039,810.97 = 409,320.74 : x
  2. Step 2: Convert to fraction form
    753,478.00/1,039,810.97 = 409,320.74/x
  3. Step 3: Cross multiply
    753,478.00x = 1,039,810.97 × 409,320.74
  4. Step 4: Simplify right side
    753,478.00x = 425,616,199,323.35
  5. Step 5: Solve for x
    x = 425,616,199,323.35/753,478.00
  6. Step 6: Final answer
    x = 564,868.78

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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.