Home / 648,215.30-894,430.13-361,734.70

Finding the Fourth Proportional to 648,215.30, 894,430.13 and 361,734.70

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Solution

The fourth proportional to 648,215.30, 894,430.13 and 361,734.70 is: 499,134.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,215.30 : 894,430.13 = 361,734.70 : x
  2. Step 2: Convert to fraction form
    648,215.30/894,430.13 = 361,734.70/x
  3. Step 3: Cross multiply
    648,215.30x = 894,430.13 × 361,734.70
  4. Step 4: Simplify right side
    648,215.30x = 323,546,414,746.51
  5. Step 5: Solve for x
    x = 323,546,414,746.51/648,215.30
  6. Step 6: Final answer
    x = 499,134.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.