Home / 711,402.40-1,066,738.80-212,701.60

Finding the Fourth Proportional to 711,402.40, 1,066,738.80 and 212,701.60

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Solution

The fourth proportional to 711,402.40, 1,066,738.80 and 212,701.60 is: 318,943.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,402.40 : 1,066,738.80 = 212,701.60 : x
  2. Step 2: Convert to fraction form
    711,402.40/1,066,738.80 = 212,701.60/x
  3. Step 3: Cross multiply
    711,402.40x = 1,066,738.80 × 212,701.60
  4. Step 4: Simplify right side
    711,402.40x = 226,897,049,542.08
  5. Step 5: Solve for x
    x = 226,897,049,542.08/711,402.40
  6. Step 6: Final answer
    x = 318,943.33

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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.