Home / 813,068.87-1,221,363.14-528,613.11

Finding the Fourth Proportional to 813,068.87, 1,221,363.14 and 528,613.11

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Solution

The fourth proportional to 813,068.87, 1,221,363.14 and 528,613.11 is: 794,063.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,068.87 : 1,221,363.14 = 528,613.11 : x
  2. Step 2: Convert to fraction form
    813,068.87/1,221,363.14 = 528,613.11/x
  3. Step 3: Cross multiply
    813,068.87x = 1,221,363.14 × 528,613.11
  4. Step 4: Simplify right side
    813,068.87x = 645,628,565,231.70
  5. Step 5: Solve for x
    x = 645,628,565,231.70/813,068.87
  6. Step 6: Final answer
    x = 794,063.82

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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.