Home / 942,680.40-1,300,901.76-512,960.64

Finding the Fourth Proportional to 942,680.40, 1,300,901.76 and 512,960.64

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Solution

The fourth proportional to 942,680.40, 1,300,901.76 and 512,960.64 is: 707,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,680.40 : 1,300,901.76 = 512,960.64 : x
  2. Step 2: Convert to fraction form
    942,680.40/1,300,901.76 = 512,960.64/x
  3. Step 3: Cross multiply
    942,680.40x = 1,300,901.76 × 512,960.64
  4. Step 4: Simplify right side
    942,680.40x = 667,311,399,386.73
  5. Step 5: Solve for x
    x = 667,311,399,386.73/942,680.40
  6. Step 6: Final answer
    x = 707,887.21

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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.