Home / 739,627.54-1,109,013.42-289,821.79

Finding the Fourth Proportional to 739,627.54, 1,109,013.42 and 289,821.79

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Solution

The fourth proportional to 739,627.54, 1,109,013.42 and 289,821.79 is: 434,565.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,627.54 : 1,109,013.42 = 289,821.79 : x
  2. Step 2: Convert to fraction form
    739,627.54/1,109,013.42 = 289,821.79/x
  3. Step 3: Cross multiply
    739,627.54x = 1,109,013.42 × 289,821.79
  4. Step 4: Simplify right side
    739,627.54x = 321,416,254,518.42
  5. Step 5: Solve for x
    x = 321,416,254,518.42/739,627.54
  6. Step 6: Final answer
    x = 434,565.02

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Double scale
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1.5x scale

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.