Home / 865,087.20-1,296,075.60-706,456.80

Finding the Fourth Proportional to 865,087.20, 1,296,075.60 and 706,456.80

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Solution

The fourth proportional to 865,087.20, 1,296,075.60 and 706,456.80 is: 1,058,415.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,087.20 : 1,296,075.60 = 706,456.80 : x
  2. Step 2: Convert to fraction form
    865,087.20/1,296,075.60 = 706,456.80/x
  3. Step 3: Cross multiply
    865,087.20x = 1,296,075.60 × 706,456.80
  4. Step 4: Simplify right side
    865,087.20x = 915,621,420,934.08
  5. Step 5: Solve for x
    x = 915,621,420,934.08/865,087.20
  6. Step 6: Final answer
    x = 1,058,415.18

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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.