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Finding the Fourth Proportional to 673,304.80, 928,768.80 and 431,501.44

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Solution

The fourth proportional to 673,304.80, 928,768.80 and 431,501.44 is: 595,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,304.80 : 928,768.80 = 431,501.44 : x
  2. Step 2: Convert to fraction form
    673,304.80/928,768.80 = 431,501.44/x
  3. Step 3: Cross multiply
    673,304.80x = 928,768.80 × 431,501.44
  4. Step 4: Simplify right side
    673,304.80x = 400,765,074,627.07
  5. Step 5: Solve for x
    x = 400,765,074,627.07/673,304.80
  6. Step 6: Final answer
    x = 595,220.88

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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.