Home / 670,512.60-1,004,456.70-403,479.90

Finding the Fourth Proportional to 670,512.60, 1,004,456.70 and 403,479.90

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Solution

The fourth proportional to 670,512.60, 1,004,456.70 and 403,479.90 is: 604,430.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,512.60 : 1,004,456.70 = 403,479.90 : x
  2. Step 2: Convert to fraction form
    670,512.60/1,004,456.70 = 403,479.90/x
  3. Step 3: Cross multiply
    670,512.60x = 1,004,456.70 × 403,479.90
  4. Step 4: Simplify right side
    670,512.60x = 405,278,088,870.33
  5. Step 5: Solve for x
    x = 405,278,088,870.33/670,512.60
  6. Step 6: Final answer
    x = 604,430.24

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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.