Home / 1,555,979.90-2,333,408.75-657,491.28

Finding the Fourth Proportional to 1,555,979.90, 2,333,408.75 and 657,491.28

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Solution

The fourth proportional to 1,555,979.90, 2,333,408.75 and 657,491.28 is: 985,999.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,979.90 : 2,333,408.75 = 657,491.28 : x
  2. Step 2: Convert to fraction form
    1,555,979.90/2,333,408.75 = 657,491.28/x
  3. Step 3: Cross multiply
    1,555,979.90x = 2,333,408.75 × 657,491.28
  4. Step 4: Simplify right side
    1,555,979.90x = 1,534,195,905,800.70
  5. Step 5: Solve for x
    x = 1,534,195,905,800.70/1,555,979.90
  6. Step 6: Final answer
    x = 985,999.82

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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.