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Finding the Fourth Proportional to 413,095.98, 618,854.01 and 279,319.62

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Solution

The fourth proportional to 413,095.98, 618,854.01 and 279,319.62 is: 418,445.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,095.98 : 618,854.01 = 279,319.62 : x
  2. Step 2: Convert to fraction form
    413,095.98/618,854.01 = 279,319.62/x
  3. Step 3: Cross multiply
    413,095.98x = 618,854.01 × 279,319.62
  4. Step 4: Simplify right side
    413,095.98x = 172,858,066,908.68
  5. Step 5: Solve for x
    x = 172,858,066,908.68/413,095.98
  6. Step 6: Final answer
    x = 418,445.29

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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.