Home / 807,340.16-1,210,589.75-380,761.45

Finding the Fourth Proportional to 807,340.16, 1,210,589.75 and 380,761.45

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Solution

The fourth proportional to 807,340.16, 1,210,589.75 and 380,761.45 is: 570,943.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,340.16 : 1,210,589.75 = 380,761.45 : x
  2. Step 2: Convert to fraction form
    807,340.16/1,210,589.75 = 380,761.45/x
  3. Step 3: Cross multiply
    807,340.16x = 1,210,589.75 × 380,761.45
  4. Step 4: Simplify right side
    807,340.16x = 460,945,904,788.18
  5. Step 5: Solve for x
    x = 460,945,904,788.18/807,340.16
  6. Step 6: Final answer
    x = 570,943.86

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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.