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Finding the Fourth Proportional to 1,836,320.40, 2,754,869.40 and 556,822.80

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Solution

The fourth proportional to 1,836,320.40, 2,754,869.40 and 556,822.80 is: 835,352.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836,320.40 : 2,754,869.40 = 556,822.80 : x
  2. Step 2: Convert to fraction form
    1,836,320.40/2,754,869.40 = 556,822.80/x
  3. Step 3: Cross multiply
    1,836,320.40x = 2,754,869.40 × 556,822.80
  4. Step 4: Simplify right side
    1,836,320.40x = 1,533,974,092,942.32
  5. Step 5: Solve for x
    x = 1,533,974,092,942.32/1,836,320.40
  6. Step 6: Final answer
    x = 835,352.09

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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.