Home / 1,420,357.20-2,130,535.80-888,916.20

Finding the Fourth Proportional to 1,420,357.20, 2,130,535.80 and 888,916.20

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Solution

The fourth proportional to 1,420,357.20, 2,130,535.80 and 888,916.20 is: 1,333,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,357.20 : 2,130,535.80 = 888,916.20 : x
  2. Step 2: Convert to fraction form
    1,420,357.20/2,130,535.80 = 888,916.20/x
  3. Step 3: Cross multiply
    1,420,357.20x = 2,130,535.80 × 888,916.20
  4. Step 4: Simplify right side
    1,420,357.20x = 1,893,867,787,299.96
  5. Step 5: Solve for x
    x = 1,893,867,787,299.96/1,420,357.20
  6. Step 6: Final answer
    x = 1,333,374.30

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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.