Home / 558,831.24-771,204.10-395,779.86

Finding the Fourth Proportional to 558,831.24, 771,204.10 and 395,779.86

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Solution

The fourth proportional to 558,831.24, 771,204.10 and 395,779.86 is: 546,188.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,831.24 : 771,204.10 = 395,779.86 : x
  2. Step 2: Convert to fraction form
    558,831.24/771,204.10 = 395,779.86/x
  3. Step 3: Cross multiply
    558,831.24x = 771,204.10 × 395,779.86
  4. Step 4: Simplify right side
    558,831.24x = 305,227,050,729.43
  5. Step 5: Solve for x
    x = 305,227,050,729.43/558,831.24
  6. Step 6: Final answer
    x = 546,188.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.