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Finding the Fourth Proportional to 517,500.78, 776,005.34 and 180,500.49

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Solution

The fourth proportional to 517,500.78, 776,005.34 and 180,500.49 is: 270,664.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,500.78 : 776,005.34 = 180,500.49 : x
  2. Step 2: Convert to fraction form
    517,500.78/776,005.34 = 180,500.49/x
  3. Step 3: Cross multiply
    517,500.78x = 776,005.34 × 180,500.49
  4. Step 4: Simplify right side
    517,500.78x = 140,069,343,210.11
  5. Step 5: Solve for x
    x = 140,069,343,210.11/517,500.78
  6. Step 6: Final answer
    x = 270,664.99

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1.5x scale

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.