Home / 781,606.80-1,171,027.80-662,720.40

Finding the Fourth Proportional to 781,606.80, 1,171,027.80 and 662,720.40

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Solution

The fourth proportional to 781,606.80, 1,171,027.80 and 662,720.40 is: 992,908.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,606.80 : 1,171,027.80 = 662,720.40 : x
  2. Step 2: Convert to fraction form
    781,606.80/1,171,027.80 = 662,720.40/x
  3. Step 3: Cross multiply
    781,606.80x = 1,171,027.80 × 662,720.40
  4. Step 4: Simplify right side
    781,606.80x = 776,064,012,027.12
  5. Step 5: Solve for x
    x = 776,064,012,027.12/781,606.80
  6. Step 6: Final answer
    x = 992,908.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.