Home / 745,100.08-1,117,838.76-212,623

Finding the Fourth Proportional to 745,100.08, 1,117,838.76 and 212,623

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Solution

The fourth proportional to 745,100.08, 1,117,838.76 and 212,623 is: 318,988.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,100.08 : 1,117,838.76 = 212,623 : x
  2. Step 2: Convert to fraction form
    745,100.08/1,117,838.76 = 212,623/x
  3. Step 3: Cross multiply
    745,100.08x = 1,117,838.76 × 212,623
  4. Step 4: Simplify right side
    745,100.08x = 237,678,230,667.48
  5. Step 5: Solve for x
    x = 237,678,230,667.48/745,100.08
  6. Step 6: Final answer
    x = 318,988.33

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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.