Home / 855,187.72-1,280,225.97-517,206.02

Finding the Fourth Proportional to 855,187.72, 1,280,225.97 and 517,206.02

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Solution

The fourth proportional to 855,187.72, 1,280,225.97 and 517,206.02 is: 774,263.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,187.72 : 1,280,225.97 = 517,206.02 : x
  2. Step 2: Convert to fraction form
    855,187.72/1,280,225.97 = 517,206.02/x
  3. Step 3: Cross multiply
    855,187.72x = 1,280,225.97 × 517,206.02
  4. Step 4: Simplify right side
    855,187.72x = 662,140,572,243.21
  5. Step 5: Solve for x
    x = 662,140,572,243.21/855,187.72
  6. Step 6: Final answer
    x = 774,263.43

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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.