Home / 711,187.80-1,066,935.30-212,602.20

Finding the Fourth Proportional to 711,187.80, 1,066,935.30 and 212,602.20

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Solution

The fourth proportional to 711,187.80, 1,066,935.30 and 212,602.20 is: 318,949.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,187.80 : 1,066,935.30 = 212,602.20 : x
  2. Step 2: Convert to fraction form
    711,187.80/1,066,935.30 = 212,602.20/x
  3. Step 3: Cross multiply
    711,187.80x = 1,066,935.30 × 212,602.20
  4. Step 4: Simplify right side
    711,187.80x = 226,832,792,037.66
  5. Step 5: Solve for x
    x = 226,832,792,037.66/711,187.80
  6. Step 6: Final answer
    x = 318,949.22

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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.