Home / 1,125,840.25-1,688,935.34-378,061.21

Finding the Fourth Proportional to 1,125,840.25, 1,688,935.34 and 378,061.21

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Solution

The fourth proportional to 1,125,840.25, 1,688,935.34 and 378,061.21 is: 567,150.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,840.25 : 1,688,935.34 = 378,061.21 : x
  2. Step 2: Convert to fraction form
    1,125,840.25/1,688,935.34 = 378,061.21/x
  3. Step 3: Cross multiply
    1,125,840.25x = 1,688,935.34 × 378,061.21
  4. Step 4: Simplify right side
    1,125,840.25x = 638,520,943,932.02
  5. Step 5: Solve for x
    x = 638,520,943,932.02/1,125,840.25
  6. Step 6: Final answer
    x = 567,150.57

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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.