Home / 723,079.80-1,084,619.70-471,137.40

Finding the Fourth Proportional to 723,079.80, 1,084,619.70 and 471,137.40

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Solution

The fourth proportional to 723,079.80, 1,084,619.70 and 471,137.40 is: 706,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,079.80 : 1,084,619.70 = 471,137.40 : x
  2. Step 2: Convert to fraction form
    723,079.80/1,084,619.70 = 471,137.40/x
  3. Step 3: Cross multiply
    723,079.80x = 1,084,619.70 × 471,137.40
  4. Step 4: Simplify right side
    723,079.80x = 511,004,905,446.78
  5. Step 5: Solve for x
    x = 511,004,905,446.78/723,079.80
  6. Step 6: Final answer
    x = 706,706.10

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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.