Home / 745,133.40-1,117,363.77-212,527.89

Finding the Fourth Proportional to 745,133.40, 1,117,363.77 and 212,527.89

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Solution

The fourth proportional to 745,133.40, 1,117,363.77 and 212,527.89 is: 318,695.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,133.40 : 1,117,363.77 = 212,527.89 : x
  2. Step 2: Convert to fraction form
    745,133.40/1,117,363.77 = 212,527.89/x
  3. Step 3: Cross multiply
    745,133.40x = 1,117,363.77 × 212,527.89
  4. Step 4: Simplify right side
    745,133.40x = 237,470,964,400.55
  5. Step 5: Solve for x
    x = 237,470,964,400.55/745,133.40
  6. Step 6: Final answer
    x = 318,695.91

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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.