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Finding the Fourth Proportional to 673,287.84, 929,473.92 and 418,721.04

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Solution

The fourth proportional to 673,287.84, 929,473.92 and 418,721.04 is: 578,044.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,287.84 : 929,473.92 = 418,721.04 : x
  2. Step 2: Convert to fraction form
    673,287.84/929,473.92 = 418,721.04/x
  3. Step 3: Cross multiply
    673,287.84x = 929,473.92 × 418,721.04
  4. Step 4: Simplify right side
    673,287.84x = 389,190,286,435.28
  5. Step 5: Solve for x
    x = 389,190,286,435.28/673,287.84
  6. Step 6: Final answer
    x = 578,044.43

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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.