Home / 948,530.12-1,309,002.66-518,810.20

Finding the Fourth Proportional to 948,530.12, 1,309,002.66 and 518,810.20

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Solution

The fourth proportional to 948,530.12, 1,309,002.66 and 518,810.20 is: 715,975.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,530.12 : 1,309,002.66 = 518,810.20 : x
  2. Step 2: Convert to fraction form
    948,530.12/1,309,002.66 = 518,810.20/x
  3. Step 3: Cross multiply
    948,530.12x = 1,309,002.66 × 518,810.20
  4. Step 4: Simplify right side
    948,530.12x = 679,123,928,562.63
  5. Step 5: Solve for x
    x = 679,123,928,562.63/948,530.12
  6. Step 6: Final answer
    x = 715,975.08

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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.