Home / 1,125,842.38-1,688,938.51-378,063.34

Finding the Fourth Proportional to 1,125,842.38, 1,688,938.51 and 378,063.34

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Solution

The fourth proportional to 1,125,842.38, 1,688,938.51 and 378,063.34 is: 567,153.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,842.38 : 1,688,938.51 = 378,063.34 : x
  2. Step 2: Convert to fraction form
    1,125,842.38/1,688,938.51 = 378,063.34/x
  3. Step 3: Cross multiply
    1,125,842.38x = 1,688,938.51 × 378,063.34
  4. Step 4: Simplify right side
    1,125,842.38x = 638,525,734,145.22
  5. Step 5: Solve for x
    x = 638,525,734,145.22/1,125,842.38
  6. Step 6: Final answer
    x = 567,153.76

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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.