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Finding the Fourth Proportional to 673,354.84, 929,229.18 and 431,637.28

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Solution

The fourth proportional to 673,354.84, 929,229.18 and 431,637.28 is: 595,659.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,354.84 : 929,229.18 = 431,637.28 : x
  2. Step 2: Convert to fraction form
    673,354.84/929,229.18 = 431,637.28/x
  3. Step 3: Cross multiply
    673,354.84x = 929,229.18 × 431,637.28
  4. Step 4: Simplify right side
    673,354.84x = 401,089,955,751.83
  5. Step 5: Solve for x
    x = 401,089,955,751.83/673,354.84
  6. Step 6: Final answer
    x = 595,659.13

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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.