Home / 855,233.10-1,180,141.50-511,000.47

Finding the Fourth Proportional to 855,233.10, 1,180,141.50 and 511,000.47

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Solution

The fourth proportional to 855,233.10, 1,180,141.50 and 511,000.47 is: 705,132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,233.10 : 1,180,141.50 = 511,000.47 : x
  2. Step 2: Convert to fraction form
    855,233.10/1,180,141.50 = 511,000.47/x
  3. Step 3: Cross multiply
    855,233.10x = 1,180,141.50 × 511,000.47
  4. Step 4: Simplify right side
    855,233.10x = 603,052,861,166.51
  5. Step 5: Solve for x
    x = 603,052,861,166.51/855,233.10
  6. Step 6: Final answer
    x = 705,132.74

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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.