Home / 905,473.20-1,358,126.76-306,365.74

Finding the Fourth Proportional to 905,473.20, 1,358,126.76 and 306,365.74

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Solution

The fourth proportional to 905,473.20, 1,358,126.76 and 306,365.74 is: 459,520.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,473.20 : 1,358,126.76 = 306,365.74 : x
  2. Step 2: Convert to fraction form
    905,473.20/1,358,126.76 = 306,365.74/x
  3. Step 3: Cross multiply
    905,473.20x = 1,358,126.76 × 306,365.74
  4. Step 4: Simplify right side
    905,473.20x = 416,083,506,445.89
  5. Step 5: Solve for x
    x = 416,083,506,445.89/905,473.20
  6. Step 6: Final answer
    x = 459,520.51

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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.