Home / 347,112.42-520,746.78-122,488.86

Finding the Fourth Proportional to 347,112.42, 520,746.78 and 122,488.86

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Solution

The fourth proportional to 347,112.42, 520,746.78 and 122,488.86 is: 183,760.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,112.42 : 520,746.78 = 122,488.86 : x
  2. Step 2: Convert to fraction form
    347,112.42/520,746.78 = 122,488.86/x
  3. Step 3: Cross multiply
    347,112.42x = 520,746.78 × 122,488.86
  4. Step 4: Simplify right side
    347,112.42x = 63,785,679,430.87
  5. Step 5: Solve for x
    x = 63,785,679,430.87/347,112.42
  6. Step 6: Final answer
    x = 183,760.87

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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.