Home / 745,012.28-1,117,529.12-212,533.37

Finding the Fourth Proportional to 745,012.28, 1,117,529.12 and 212,533.37

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Solution

The fourth proportional to 745,012.28, 1,117,529.12 and 212,533.37 is: 318,803.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,012.28 : 1,117,529.12 = 212,533.37 : x
  2. Step 2: Convert to fraction form
    745,012.28/1,117,529.12 = 212,533.37/x
  3. Step 3: Cross multiply
    745,012.28x = 1,117,529.12 × 212,533.37
  4. Step 4: Simplify right side
    745,012.28x = 237,512,229,081.16
  5. Step 5: Solve for x
    x = 237,512,229,081.16/745,012.28
  6. Step 6: Final answer
    x = 318,803.11

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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.