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Finding the Fourth Proportional to 520,390.96, 776,189.48 and 504,640.24

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Solution

The fourth proportional to 520,390.96, 776,189.48 and 504,640.24 is: 752,696.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,390.96 : 776,189.48 = 504,640.24 : x
  2. Step 2: Convert to fraction form
    520,390.96/776,189.48 = 504,640.24/x
  3. Step 3: Cross multiply
    520,390.96x = 776,189.48 × 504,640.24
  4. Step 4: Simplify right side
    520,390.96x = 391,696,445,472.68
  5. Step 5: Solve for x
    x = 391,696,445,472.68/520,390.96
  6. Step 6: Final answer
    x = 752,696.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.