Home / 470,084.32-703,567.20-428,061.52

Finding the Fourth Proportional to 470,084.32, 703,567.20 and 428,061.52

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Solution

The fourth proportional to 470,084.32, 703,567.20 and 428,061.52 is: 640,672.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,084.32 : 703,567.20 = 428,061.52 : x
  2. Step 2: Convert to fraction form
    470,084.32/703,567.20 = 428,061.52/x
  3. Step 3: Cross multiply
    470,084.32x = 703,567.20 × 428,061.52
  4. Step 4: Simplify right side
    470,084.32x = 301,170,045,054.14
  5. Step 5: Solve for x
    x = 301,170,045,054.14/470,084.32
  6. Step 6: Final answer
    x = 640,672.39

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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.