Home / 871,378.61-1,307,068.94-272,342.91

Finding the Fourth Proportional to 871,378.61, 1,307,068.94 and 272,342.91

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Solution

The fourth proportional to 871,378.61, 1,307,068.94 and 272,342.91 is: 408,514.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,378.61 : 1,307,068.94 = 272,342.91 : x
  2. Step 2: Convert to fraction form
    871,378.61/1,307,068.94 = 272,342.91/x
  3. Step 3: Cross multiply
    871,378.61x = 1,307,068.94 × 272,342.91
  4. Step 4: Simplify right side
    871,378.61x = 355,970,957,328.50
  5. Step 5: Solve for x
    x = 355,970,957,328.50/871,378.61
  6. Step 6: Final answer
    x = 408,514.69

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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.