Home / 709,907.02-979,665.51-387,615.58

Finding the Fourth Proportional to 709,907.02, 979,665.51 and 387,615.58

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Solution

The fourth proportional to 709,907.02, 979,665.51 and 387,615.58 is: 534,906.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,907.02 : 979,665.51 = 387,615.58 : x
  2. Step 2: Convert to fraction form
    709,907.02/979,665.51 = 387,615.58/x
  3. Step 3: Cross multiply
    709,907.02x = 979,665.51 × 387,615.58
  4. Step 4: Simplify right side
    709,907.02x = 379,733,614,864.65
  5. Step 5: Solve for x
    x = 379,733,614,864.65/709,907.02
  6. Step 6: Final answer
    x = 534,906.13

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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.