Home / 989,763.72-1,484,349.42-516,190.74

Finding the Fourth Proportional to 989,763.72, 1,484,349.42 and 516,190.74

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Solution

The fourth proportional to 989,763.72, 1,484,349.42 and 516,190.74 is: 774,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,763.72 : 1,484,349.42 = 516,190.74 : x
  2. Step 2: Convert to fraction form
    989,763.72/1,484,349.42 = 516,190.74/x
  3. Step 3: Cross multiply
    989,763.72x = 1,484,349.42 × 516,190.74
  4. Step 4: Simplify right side
    989,763.72x = 766,207,425,528.37
  5. Step 5: Solve for x
    x = 766,207,425,528.37/989,763.72
  6. Step 6: Final answer
    x = 774,131.65

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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.