Home / 729,015.75-1,006,041.75-427,209.75

Finding the Fourth Proportional to 729,015.75, 1,006,041.75 and 427,209.75

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Solution

The fourth proportional to 729,015.75, 1,006,041.75 and 427,209.75 is: 589,549.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,015.75 : 1,006,041.75 = 427,209.75 : x
  2. Step 2: Convert to fraction form
    729,015.75/1,006,041.75 = 427,209.75/x
  3. Step 3: Cross multiply
    729,015.75x = 1,006,041.75 × 427,209.75
  4. Step 4: Simplify right side
    729,015.75x = 429,790,844,507.06
  5. Step 5: Solve for x
    x = 429,790,844,507.06/729,015.75
  6. Step 6: Final answer
    x = 589,549.46

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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.