Home / 865,811.80-1,300,029.90-666,357.40

Finding the Fourth Proportional to 865,811.80, 1,300,029.90 and 666,357.40

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Solution

The fourth proportional to 865,811.80, 1,300,029.90 and 666,357.40 is: 1,000,546.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,811.80 : 1,300,029.90 = 666,357.40 : x
  2. Step 2: Convert to fraction form
    865,811.80/1,300,029.90 = 666,357.40/x
  3. Step 3: Cross multiply
    865,811.80x = 1,300,029.90 × 666,357.40
  4. Step 4: Simplify right side
    865,811.80x = 866,284,544,086.26
  5. Step 5: Solve for x
    x = 866,284,544,086.26/865,811.80
  6. Step 6: Final answer
    x = 1,000,546.01

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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.