Home / 470,085.32-703,568.70-428,062.52

Finding the Fourth Proportional to 470,085.32, 703,568.70 and 428,062.52

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Solution

The fourth proportional to 470,085.32, 703,568.70 and 428,062.52 is: 640,673.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,085.32 : 703,568.70 = 428,062.52 : x
  2. Step 2: Convert to fraction form
    470,085.32/703,568.70 = 428,062.52/x
  3. Step 3: Cross multiply
    470,085.32x = 703,568.70 × 428,062.52
  4. Step 4: Simplify right side
    470,085.32x = 301,171,390,715.12
  5. Step 5: Solve for x
    x = 301,171,390,715.12/470,085.32
  6. Step 6: Final answer
    x = 640,673.89

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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.