Home / 712,644.16-1,069,016.12-286,179.96

Finding the Fourth Proportional to 712,644.16, 1,069,016.12 and 286,179.96

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Solution

The fourth proportional to 712,644.16, 1,069,016.12 and 286,179.96 is: 429,289.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,644.16 : 1,069,016.12 = 286,179.96 : x
  2. Step 2: Convert to fraction form
    712,644.16/1,069,016.12 = 286,179.96/x
  3. Step 3: Cross multiply
    712,644.16x = 1,069,016.12 × 286,179.96
  4. Step 4: Simplify right side
    712,644.16x = 305,930,990,460.96
  5. Step 5: Solve for x
    x = 305,930,990,460.96/712,644.16
  6. Step 6: Final answer
    x = 429,289.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.