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Finding the Fourth Proportional to 508,279.32, 701,447.64 and 304,290.93

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Solution

The fourth proportional to 508,279.32, 701,447.64 and 304,290.93 is: 419,934.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,279.32 : 701,447.64 = 304,290.93 : x
  2. Step 2: Convert to fraction form
    508,279.32/701,447.64 = 304,290.93/x
  3. Step 3: Cross multiply
    508,279.32x = 701,447.64 × 304,290.93
  4. Step 4: Simplify right side
    508,279.32x = 213,444,154,721.91
  5. Step 5: Solve for x
    x = 213,444,154,721.91/508,279.32
  6. Step 6: Final answer
    x = 419,934.76

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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.