Home / 745,013.28-1,117,530.62-212,534.37

Finding the Fourth Proportional to 745,013.28, 1,117,530.62 and 212,534.37

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Solution

The fourth proportional to 745,013.28, 1,117,530.62 and 212,534.37 is: 318,804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,013.28 : 1,117,530.62 = 212,534.37 : x
  2. Step 2: Convert to fraction form
    745,013.28/1,117,530.62 = 212,534.37/x
  3. Step 3: Cross multiply
    745,013.28x = 1,117,530.62 × 212,534.37
  4. Step 4: Simplify right side
    745,013.28x = 237,513,666,277.41
  5. Step 5: Solve for x
    x = 237,513,666,277.41/745,013.28
  6. Step 6: Final answer
    x = 318,804.61

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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.