Home / 1,087,810.72-1,631,254.62-518,533.24

Finding the Fourth Proportional to 1,087,810.72, 1,631,254.62 and 518,533.24

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Solution

The fourth proportional to 1,087,810.72, 1,631,254.62 and 518,533.24 is: 777,579.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,810.72 : 1,631,254.62 = 518,533.24 : x
  2. Step 2: Convert to fraction form
    1,087,810.72/1,631,254.62 = 518,533.24/x
  3. Step 3: Cross multiply
    1,087,810.72x = 1,631,254.62 × 518,533.24
  4. Step 4: Simplify right side
    1,087,810.72x = 845,859,743,373.57
  5. Step 5: Solve for x
    x = 845,859,743,373.57/1,087,810.72
  6. Step 6: Final answer
    x = 777,579.89

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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.