Home / 711,218.80-1,066,981.80-212,633.20

Finding the Fourth Proportional to 711,218.80, 1,066,981.80 and 212,633.20

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Solution

The fourth proportional to 711,218.80, 1,066,981.80 and 212,633.20 is: 318,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,218.80 : 1,066,981.80 = 212,633.20 : x
  2. Step 2: Convert to fraction form
    711,218.80/1,066,981.80 = 212,633.20/x
  3. Step 3: Cross multiply
    711,218.80x = 1,066,981.80 × 212,633.20
  4. Step 4: Simplify right side
    711,218.80x = 226,875,754,475.76
  5. Step 5: Solve for x
    x = 226,875,754,475.76/711,218.80
  6. Step 6: Final answer
    x = 318,995.72

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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.