Home / 1,507,019.49-2,079,688.71-818,691.81

Finding the Fourth Proportional to 1,507,019.49, 2,079,688.71 and 818,691.81

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Solution

The fourth proportional to 1,507,019.49, 2,079,688.71 and 818,691.81 is: 1,129,795.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507,019.49 : 2,079,688.71 = 818,691.81 : x
  2. Step 2: Convert to fraction form
    1,507,019.49/2,079,688.71 = 818,691.81/x
  3. Step 3: Cross multiply
    1,507,019.49x = 2,079,688.71 × 818,691.81
  4. Step 4: Simplify right side
    1,507,019.49x = 1,702,624,114,226.47
  5. Step 5: Solve for x
    x = 1,702,624,114,226.47/1,507,019.49
  6. Step 6: Final answer
    x = 1,129,795.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.