Home / 499,874.19-689,823.54-270,430.85

Finding the Fourth Proportional to 499,874.19, 689,823.54 and 270,430.85

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Solution

The fourth proportional to 499,874.19, 689,823.54 and 270,430.85 is: 373,193.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,874.19 : 689,823.54 = 270,430.85 : x
  2. Step 2: Convert to fraction form
    499,874.19/689,823.54 = 270,430.85/x
  3. Step 3: Cross multiply
    499,874.19x = 689,823.54 × 270,430.85
  4. Step 4: Simplify right side
    499,874.19x = 186,549,567,996.77
  5. Step 5: Solve for x
    x = 186,549,567,996.77/499,874.19
  6. Step 6: Final answer
    x = 373,193.04

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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.