Home / 709,487.40-1,064,231.10-288,546.60

Finding the Fourth Proportional to 709,487.40, 1,064,231.10 and 288,546.60

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Solution

The fourth proportional to 709,487.40, 1,064,231.10 and 288,546.60 is: 432,819.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,487.40 : 1,064,231.10 = 288,546.60 : x
  2. Step 2: Convert to fraction form
    709,487.40/1,064,231.10 = 288,546.60/x
  3. Step 3: Cross multiply
    709,487.40x = 1,064,231.10 × 288,546.60
  4. Step 4: Simplify right side
    709,487.40x = 307,080,265,519.26
  5. Step 5: Solve for x
    x = 307,080,265,519.26/709,487.40
  6. Step 6: Final answer
    x = 432,819.90

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1.5x scale

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.