Home / 877,737.87-1,316,987.15-309,524.96

Finding the Fourth Proportional to 877,737.87, 1,316,987.15 and 309,524.96

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Solution

The fourth proportional to 877,737.87, 1,316,987.15 and 309,524.96 is: 464,421.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,737.87 : 1,316,987.15 = 309,524.96 : x
  2. Step 2: Convert to fraction form
    877,737.87/1,316,987.15 = 309,524.96/x
  3. Step 3: Cross multiply
    877,737.87x = 1,316,987.15 × 309,524.96
  4. Step 4: Simplify right side
    877,737.87x = 407,640,396,669.11
  5. Step 5: Solve for x
    x = 407,640,396,669.11/877,737.87
  6. Step 6: Final answer
    x = 464,421.57

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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.