Home / 1,138,494.30-1,571,846.76-709,404.90

Finding the Fourth Proportional to 1,138,494.30, 1,571,846.76 and 709,404.90

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Solution

The fourth proportional to 1,138,494.30, 1,571,846.76 and 709,404.90 is: 979,430.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,494.30 : 1,571,846.76 = 709,404.90 : x
  2. Step 2: Convert to fraction form
    1,138,494.30/1,571,846.76 = 709,404.90/x
  3. Step 3: Cross multiply
    1,138,494.30x = 1,571,846.76 × 709,404.90
  4. Step 4: Simplify right side
    1,138,494.30x = 1,115,075,793,593.12
  5. Step 5: Solve for x
    x = 1,115,075,793,593.12/1,138,494.30
  6. Step 6: Final answer
    x = 979,430.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.