Home / 768,555.40-1,152,830.66-207,589.90

Finding the Fourth Proportional to 768,555.40, 1,152,830.66 and 207,589.90

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Solution

The fourth proportional to 768,555.40, 1,152,830.66 and 207,589.90 is: 311,384.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,555.40 : 1,152,830.66 = 207,589.90 : x
  2. Step 2: Convert to fraction form
    768,555.40/1,152,830.66 = 207,589.90/x
  3. Step 3: Cross multiply
    768,555.40x = 1,152,830.66 × 207,589.90
  4. Step 4: Simplify right side
    768,555.40x = 239,316,001,426.33
  5. Step 5: Solve for x
    x = 239,316,001,426.33/768,555.40
  6. Step 6: Final answer
    x = 311,384.19

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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.