Home / 980,649.09-1,353,222.99-551,000.79

Finding the Fourth Proportional to 980,649.09, 1,353,222.99 and 551,000.79

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Solution

The fourth proportional to 980,649.09, 1,353,222.99 and 551,000.79 is: 760,340.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,649.09 : 1,353,222.99 = 551,000.79 : x
  2. Step 2: Convert to fraction form
    980,649.09/1,353,222.99 = 551,000.79/x
  3. Step 3: Cross multiply
    980,649.09x = 1,353,222.99 × 551,000.79
  4. Step 4: Simplify right side
    980,649.09x = 745,626,936,536.16
  5. Step 5: Solve for x
    x = 745,626,936,536.16/980,649.09
  6. Step 6: Final answer
    x = 760,340.21

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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.