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Finding the Fourth Proportional to 673,464.08, 929,462.28 and 386,983.28

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Solution

The fourth proportional to 673,464.08, 929,462.28 and 386,983.28 is: 534,083.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,464.08 : 929,462.28 = 386,983.28 : x
  2. Step 2: Convert to fraction form
    673,464.08/929,462.28 = 386,983.28/x
  3. Step 3: Cross multiply
    673,464.08x = 929,462.28 × 386,983.28
  4. Step 4: Simplify right side
    673,464.08x = 359,686,361,750.68
  5. Step 5: Solve for x
    x = 359,686,361,750.68/673,464.08
  6. Step 6: Final answer
    x = 534,083.96

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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.