Home / 540,327.11-745,631.25-310,919.82

Finding the Fourth Proportional to 540,327.11, 745,631.25 and 310,919.82

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Solution

The fourth proportional to 540,327.11, 745,631.25 and 310,919.82 is: 429,057.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,327.11 : 745,631.25 = 310,919.82 : x
  2. Step 2: Convert to fraction form
    540,327.11/745,631.25 = 310,919.82/x
  3. Step 3: Cross multiply
    540,327.11x = 745,631.25 × 310,919.82
  4. Step 4: Simplify right side
    540,327.11x = 231,831,534,036.38
  5. Step 5: Solve for x
    x = 231,831,534,036.38/540,327.11
  6. Step 6: Final answer
    x = 429,057.75

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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.