Home / 480,860.86-721,356.91-200,312.50

Finding the Fourth Proportional to 480,860.86, 721,356.91 and 200,312.50

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Solution

The fourth proportional to 480,860.86, 721,356.91 and 200,312.50 is: 300,496.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,860.86 : 721,356.91 = 200,312.50 : x
  2. Step 2: Convert to fraction form
    480,860.86/721,356.91 = 200,312.50/x
  3. Step 3: Cross multiply
    480,860.86x = 721,356.91 × 200,312.50
  4. Step 4: Simplify right side
    480,860.86x = 144,496,806,034.38
  5. Step 5: Solve for x
    x = 144,496,806,034.38/480,860.86
  6. Step 6: Final answer
    x = 300,496.09

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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.