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Finding the Fourth Proportional to 520,879.01, 785,222.57 and 486,158.90

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Solution

The fourth proportional to 520,879.01, 785,222.57 and 486,158.90 is: 732,882.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,879.01 : 785,222.57 = 486,158.90 : x
  2. Step 2: Convert to fraction form
    520,879.01/785,222.57 = 486,158.90/x
  3. Step 3: Cross multiply
    520,879.01x = 785,222.57 × 486,158.90
  4. Step 4: Simplify right side
    520,879.01x = 381,742,938,175.66
  5. Step 5: Solve for x
    x = 381,742,938,175.66/520,879.01
  6. Step 6: Final answer
    x = 732,882.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.