Home / 849,399.75-1,274,296.73-288,434.79

Finding the Fourth Proportional to 849,399.75, 1,274,296.73 and 288,434.79

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Solution

The fourth proportional to 849,399.75, 1,274,296.73 and 288,434.79 is: 432,719.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,399.75 : 1,274,296.73 = 288,434.79 : x
  2. Step 2: Convert to fraction form
    849,399.75/1,274,296.73 = 288,434.79/x
  3. Step 3: Cross multiply
    849,399.75x = 1,274,296.73 × 288,434.79
  4. Step 4: Simplify right side
    849,399.75x = 367,551,508,273.06
  5. Step 5: Solve for x
    x = 367,551,508,273.06/849,399.75
  6. Step 6: Final answer
    x = 432,719.12

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1.5x scale

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.