Home / 1,241,047.20-1,861,570.80-768,655.20

Finding the Fourth Proportional to 1,241,047.20, 1,861,570.80 and 768,655.20

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Solution

The fourth proportional to 1,241,047.20, 1,861,570.80 and 768,655.20 is: 1,152,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,047.20 : 1,861,570.80 = 768,655.20 : x
  2. Step 2: Convert to fraction form
    1,241,047.20/1,861,570.80 = 768,655.20/x
  3. Step 3: Cross multiply
    1,241,047.20x = 1,861,570.80 × 768,655.20
  4. Step 4: Simplify right side
    1,241,047.20x = 1,430,906,075,588.16
  5. Step 5: Solve for x
    x = 1,430,906,075,588.16/1,241,047.20
  6. Step 6: Final answer
    x = 1,152,982.80

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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.