Home / 1,153,612.70-1,729,281.78-405,133.82

Finding the Fourth Proportional to 1,153,612.70, 1,729,281.78 and 405,133.82

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Solution

The fourth proportional to 1,153,612.70, 1,729,281.78 and 405,133.82 is: 607,301.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,612.70 : 1,729,281.78 = 405,133.82 : x
  2. Step 2: Convert to fraction form
    1,153,612.70/1,729,281.78 = 405,133.82/x
  3. Step 3: Cross multiply
    1,153,612.70x = 1,729,281.78 × 405,133.82
  4. Step 4: Simplify right side
    1,153,612.70x = 700,590,533,387.80
  5. Step 5: Solve for x
    x = 700,590,533,387.80/1,153,612.70
  6. Step 6: Final answer
    x = 607,301.34

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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.