Home / 980,501.80-1,468,784.40-661,637.20

Finding the Fourth Proportional to 980,501.80, 1,468,784.40 and 661,637.20

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Solution

The fourth proportional to 980,501.80, 1,468,784.40 and 661,637.20 is: 991,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,501.80 : 1,468,784.40 = 661,637.20 : x
  2. Step 2: Convert to fraction form
    980,501.80/1,468,784.40 = 661,637.20/x
  3. Step 3: Cross multiply
    980,501.80x = 1,468,784.40 × 661,637.20
  4. Step 4: Simplify right side
    980,501.80x = 971,802,397,819.68
  5. Step 5: Solve for x
    x = 971,802,397,819.68/980,501.80
  6. Step 6: Final answer
    x = 991,127.60

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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.