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Finding the Fourth Proportional to 587,604.86, 881,407.58 and 387,878.57

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Solution

The fourth proportional to 587,604.86, 881,407.58 and 387,878.57 is: 581,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,604.86 : 881,407.58 = 387,878.57 : x
  2. Step 2: Convert to fraction form
    587,604.86/881,407.58 = 387,878.57/x
  3. Step 3: Cross multiply
    587,604.86x = 881,407.58 × 387,878.57
  4. Step 4: Simplify right side
    587,604.86x = 341,879,111,717.56
  5. Step 5: Solve for x
    x = 341,879,111,717.56/587,604.86
  6. Step 6: Final answer
    x = 581,818.05

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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.