Home / 727,713.70-1,091,570.55-328,545.70

Finding the Fourth Proportional to 727,713.70, 1,091,570.55 and 328,545.70

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Solution

The fourth proportional to 727,713.70, 1,091,570.55 and 328,545.70 is: 492,818.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,713.70 : 1,091,570.55 = 328,545.70 : x
  2. Step 2: Convert to fraction form
    727,713.70/1,091,570.55 = 328,545.70/x
  3. Step 3: Cross multiply
    727,713.70x = 1,091,570.55 × 328,545.70
  4. Step 4: Simplify right side
    727,713.70x = 358,630,810,449.14
  5. Step 5: Solve for x
    x = 358,630,810,449.14/727,713.70
  6. Step 6: Final answer
    x = 492,818.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.