Home / 745,000.76-1,117,538.04-212,600.24

Finding the Fourth Proportional to 745,000.76, 1,117,538.04 and 212,600.24

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Solution

The fourth proportional to 745,000.76, 1,117,538.04 and 212,600.24 is: 318,910.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,000.76 : 1,117,538.04 = 212,600.24 : x
  2. Step 2: Convert to fraction form
    745,000.76/1,117,538.04 = 212,600.24/x
  3. Step 3: Cross multiply
    745,000.76x = 1,117,538.04 × 212,600.24
  4. Step 4: Simplify right side
    745,000.76x = 237,588,855,513.13
  5. Step 5: Solve for x
    x = 237,588,855,513.13/745,000.76
  6. Step 6: Final answer
    x = 318,910.89

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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.