Home / 709,463.04-979,058.73-387,173.13

Finding the Fourth Proportional to 709,463.04, 979,058.73 and 387,173.13

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Solution

The fourth proportional to 709,463.04, 979,058.73 and 387,173.13 is: 534,298.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,463.04 : 979,058.73 = 387,173.13 : x
  2. Step 2: Convert to fraction form
    709,463.04/979,058.73 = 387,173.13/x
  3. Step 3: Cross multiply
    709,463.04x = 979,058.73 × 387,173.13
  4. Step 4: Simplify right side
    709,463.04x = 379,065,231,012.06
  5. Step 5: Solve for x
    x = 379,065,231,012.06/709,463.04
  6. Step 6: Final answer
    x = 534,298.78

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1.5x scale

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.