Home / 709,475.48-979,096.92-387,206.28

Finding the Fourth Proportional to 709,475.48, 979,096.92 and 387,206.28

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Solution

The fourth proportional to 709,475.48, 979,096.92 and 387,206.28 is: 534,356.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,475.48 : 979,096.92 = 387,206.28 : x
  2. Step 2: Convert to fraction form
    709,475.48/979,096.92 = 387,206.28/x
  3. Step 3: Cross multiply
    709,475.48x = 979,096.92 × 387,206.28
  4. Step 4: Simplify right side
    709,475.48x = 379,112,476,152.66
  5. Step 5: Solve for x
    x = 379,112,476,152.66/709,475.48
  6. Step 6: Final answer
    x = 534,356.00

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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.