Home / 711,279.80-1,066,919.70-670,729.40

Finding the Fourth Proportional to 711,279.80, 1,066,919.70 and 670,729.40

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Solution

The fourth proportional to 711,279.80, 1,066,919.70 and 670,729.40 is: 1,006,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,279.80 : 1,066,919.70 = 670,729.40 : x
  2. Step 2: Convert to fraction form
    711,279.80/1,066,919.70 = 670,729.40/x
  3. Step 3: Cross multiply
    711,279.80x = 1,066,919.70 × 670,729.40
  4. Step 4: Simplify right side
    711,279.80x = 715,614,410,229.18
  5. Step 5: Solve for x
    x = 715,614,410,229.18/711,279.80
  6. Step 6: Final answer
    x = 1,006,094.10

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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.