Home / 948,341.88-1,308,722.13-518,612.78

Finding the Fourth Proportional to 948,341.88, 1,308,722.13 and 518,612.78

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Solution

The fourth proportional to 948,341.88, 1,308,722.13 and 518,612.78 is: 715,691.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,341.88 : 1,308,722.13 = 518,612.78 : x
  2. Step 2: Convert to fraction form
    948,341.88/1,308,722.13 = 518,612.78/x
  3. Step 3: Cross multiply
    948,341.88x = 1,308,722.13 × 518,612.78
  4. Step 4: Simplify right side
    948,341.88x = 678,720,022,086.82
  5. Step 5: Solve for x
    x = 678,720,022,086.82/948,341.88
  6. Step 6: Final answer
    x = 715,691.29

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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.