Home / 989,761.48-1,484,346.06-516,188.50

Finding the Fourth Proportional to 989,761.48, 1,484,346.06 and 516,188.50

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Solution

The fourth proportional to 989,761.48, 1,484,346.06 and 516,188.50 is: 774,128.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,761.48 : 1,484,346.06 = 516,188.50 : x
  2. Step 2: Convert to fraction form
    989,761.48/1,484,346.06 = 516,188.50/x
  3. Step 3: Cross multiply
    989,761.48x = 1,484,346.06 × 516,188.50
  4. Step 4: Simplify right side
    989,761.48x = 766,202,366,192.31
  5. Step 5: Solve for x
    x = 766,202,366,192.31/989,761.48
  6. Step 6: Final answer
    x = 774,128.29

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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.