Home / 948,572.12-1,309,039.82-518,842.80

Finding the Fourth Proportional to 948,572.12, 1,309,039.82 and 518,842.80

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Solution

The fourth proportional to 948,572.12, 1,309,039.82 and 518,842.80 is: 716,008.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,572.12 : 1,309,039.82 = 518,842.80 : x
  2. Step 2: Convert to fraction form
    948,572.12/1,309,039.82 = 518,842.80/x
  3. Step 3: Cross multiply
    948,572.12x = 1,309,039.82 × 518,842.80
  4. Step 4: Simplify right side
    948,572.12x = 679,185,885,520.30
  5. Step 5: Solve for x
    x = 679,185,885,520.30/948,572.12
  6. Step 6: Final answer
    x = 716,008.69

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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.