Home / 710,566.80-1,065,719.49-311,133.12

Finding the Fourth Proportional to 710,566.80, 1,065,719.49 and 311,133.12

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Solution

The fourth proportional to 710,566.80, 1,065,719.49 and 311,133.12 is: 466,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,566.80 : 1,065,719.49 = 311,133.12 : x
  2. Step 2: Convert to fraction form
    710,566.80/1,065,719.49 = 311,133.12/x
  3. Step 3: Cross multiply
    710,566.80x = 1,065,719.49 × 311,133.12
  4. Step 4: Simplify right side
    710,566.80x = 331,580,629,968.51
  5. Step 5: Solve for x
    x = 331,580,629,968.51/710,566.80
  6. Step 6: Final answer
    x = 466,642.45

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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.