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Finding the Fourth Proportional to 520,444.74, 718,180.51 and 291,020.95

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Solution

The fourth proportional to 520,444.74, 718,180.51 and 291,020.95 is: 401,590.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,444.74 : 718,180.51 = 291,020.95 : x
  2. Step 2: Convert to fraction form
    520,444.74/718,180.51 = 291,020.95/x
  3. Step 3: Cross multiply
    520,444.74x = 718,180.51 × 291,020.95
  4. Step 4: Simplify right side
    520,444.74x = 209,005,569,245.68
  5. Step 5: Solve for x
    x = 209,005,569,245.68/520,444.74
  6. Step 6: Final answer
    x = 401,590.32

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1.5x scale

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.