Home / 709,320.30-979,223.04-547,812.78

Finding the Fourth Proportional to 709,320.30, 979,223.04 and 547,812.78

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Solution

The fourth proportional to 709,320.30, 979,223.04 and 547,812.78 is: 756,260.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,320.30 : 979,223.04 = 547,812.78 : x
  2. Step 2: Convert to fraction form
    709,320.30/979,223.04 = 547,812.78/x
  3. Step 3: Cross multiply
    709,320.30x = 979,223.04 × 547,812.78
  4. Step 4: Simplify right side
    709,320.30x = 536,430,895,782.45
  5. Step 5: Solve for x
    x = 536,430,895,782.45/709,320.30
  6. Step 6: Final answer
    x = 756,260.46

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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.