Home / 1,209,755.50-1,814,633.26-421,787.50

Finding the Fourth Proportional to 1,209,755.50, 1,814,633.26 and 421,787.50

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Solution

The fourth proportional to 1,209,755.50, 1,814,633.26 and 421,787.50 is: 632,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,755.50 : 1,814,633.26 = 421,787.50 : x
  2. Step 2: Convert to fraction form
    1,209,755.50/1,814,633.26 = 421,787.50/x
  3. Step 3: Cross multiply
    1,209,755.50x = 1,814,633.26 × 421,787.50
  4. Step 4: Simplify right side
    1,209,755.50x = 765,389,626,152.25
  5. Step 5: Solve for x
    x = 765,389,626,152.25/1,209,755.50
  6. Step 6: Final answer
    x = 632,681.25

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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.