Home / 1,502,139.21-2,072,952.59-813,815.81

Finding the Fourth Proportional to 1,502,139.21, 2,072,952.59 and 813,815.81

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Solution

The fourth proportional to 1,502,139.21, 2,072,952.59 and 813,815.81 is: 1,123,066.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502,139.21 : 2,072,952.59 = 813,815.81 : x
  2. Step 2: Convert to fraction form
    1,502,139.21/2,072,952.59 = 813,815.81/x
  3. Step 3: Cross multiply
    1,502,139.21x = 2,072,952.59 × 813,815.81
  4. Step 4: Simplify right side
    1,502,139.21x = 1,687,001,576,688.61
  5. Step 5: Solve for x
    x = 1,687,001,576,688.61/1,502,139.21
  6. Step 6: Final answer
    x = 1,123,066.07

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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.