Home / 1,020,815.12-1,531,362.78-346,715.44

Finding the Fourth Proportional to 1,020,815.12, 1,531,362.78 and 346,715.44

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Solution

The fourth proportional to 1,020,815.12, 1,531,362.78 and 346,715.44 is: 520,120.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,815.12 : 1,531,362.78 = 346,715.44 : x
  2. Step 2: Convert to fraction form
    1,020,815.12/1,531,362.78 = 346,715.44/x
  3. Step 3: Cross multiply
    1,020,815.12x = 1,531,362.78 × 346,715.44
  4. Step 4: Simplify right side
    1,020,815.12x = 530,947,116,238.92
  5. Step 5: Solve for x
    x = 530,947,116,238.92/1,020,815.12
  6. Step 6: Final answer
    x = 520,120.74

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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.