Home / 1,210,688.82-1,816,127.09-490,687.87

Finding the Fourth Proportional to 1,210,688.82, 1,816,127.09 and 490,687.87

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Solution

The fourth proportional to 1,210,688.82, 1,816,127.09 and 490,687.87 is: 736,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,688.82 : 1,816,127.09 = 490,687.87 : x
  2. Step 2: Convert to fraction form
    1,210,688.82/1,816,127.09 = 490,687.87/x
  3. Step 3: Cross multiply
    1,210,688.82x = 1,816,127.09 × 490,687.87
  4. Step 4: Simplify right side
    1,210,688.82x = 891,151,539,208.44
  5. Step 5: Solve for x
    x = 891,151,539,208.44/1,210,688.82
  6. Step 6: Final answer
    x = 736,069.85

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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.