Home / 1,220,805.18-1,831,437.36-491,384.16

Finding the Fourth Proportional to 1,220,805.18, 1,831,437.36 and 491,384.16

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Solution

The fourth proportional to 1,220,805.18, 1,831,437.36 and 491,384.16 is: 737,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,805.18 : 1,831,437.36 = 491,384.16 : x
  2. Step 2: Convert to fraction form
    1,220,805.18/1,831,437.36 = 491,384.16/x
  3. Step 3: Cross multiply
    1,220,805.18x = 1,831,437.36 × 491,384.16
  4. Step 4: Simplify right side
    1,220,805.18x = 899,939,308,736.22
  5. Step 5: Solve for x
    x = 899,939,308,736.22/1,220,805.18
  6. Step 6: Final answer
    x = 737,168.65

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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.