Home / 688,816.86-1,033,226.91-215,503.08

Finding the Fourth Proportional to 688,816.86, 1,033,226.91 and 215,503.08

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Solution

The fourth proportional to 688,816.86, 1,033,226.91 and 215,503.08 is: 323,255.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,816.86 : 1,033,226.91 = 215,503.08 : x
  2. Step 2: Convert to fraction form
    688,816.86/1,033,226.91 = 215,503.08/x
  3. Step 3: Cross multiply
    688,816.86x = 1,033,226.91 × 215,503.08
  4. Step 4: Simplify right side
    688,816.86x = 222,663,581,443.88
  5. Step 5: Solve for x
    x = 222,663,581,443.88/688,816.86
  6. Step 6: Final answer
    x = 323,255.13

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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.