Home / 1,087,619.20-1,631,428.80-835,385.20

Finding the Fourth Proportional to 1,087,619.20, 1,631,428.80 and 835,385.20

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Solution

The fourth proportional to 1,087,619.20, 1,631,428.80 and 835,385.20 is: 1,253,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,619.20 : 1,631,428.80 = 835,385.20 : x
  2. Step 2: Convert to fraction form
    1,087,619.20/1,631,428.80 = 835,385.20/x
  3. Step 3: Cross multiply
    1,087,619.20x = 1,631,428.80 × 835,385.20
  4. Step 4: Simplify right side
    1,087,619.20x = 1,362,871,474,373.76
  5. Step 5: Solve for x
    x = 1,362,871,474,373.76/1,087,619.20
  6. Step 6: Final answer
    x = 1,253,077.80

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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.