Home / 1,230,011.80-1,845,017.70-755,157.40

Finding the Fourth Proportional to 1,230,011.80, 1,845,017.70 and 755,157.40

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Solution

The fourth proportional to 1,230,011.80, 1,845,017.70 and 755,157.40 is: 1,132,736.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,011.80 : 1,845,017.70 = 755,157.40 : x
  2. Step 2: Convert to fraction form
    1,230,011.80/1,845,017.70 = 755,157.40/x
  3. Step 3: Cross multiply
    1,230,011.80x = 1,845,017.70 × 755,157.40
  4. Step 4: Simplify right side
    1,230,011.80x = 1,393,278,769,285.98
  5. Step 5: Solve for x
    x = 1,393,278,769,285.98/1,230,011.80
  6. Step 6: Final answer
    x = 1,132,736.10

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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.