Home / 666,242.91-919,418.04-360,319.35

Finding the Fourth Proportional to 666,242.91, 919,418.04 and 360,319.35

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Solution

The fourth proportional to 666,242.91, 919,418.04 and 360,319.35 is: 497,242.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,242.91 : 919,418.04 = 360,319.35 : x
  2. Step 2: Convert to fraction form
    666,242.91/919,418.04 = 360,319.35/x
  3. Step 3: Cross multiply
    666,242.91x = 919,418.04 × 360,319.35
  4. Step 4: Simplify right side
    666,242.91x = 331,284,110,551.07
  5. Step 5: Solve for x
    x = 331,284,110,551.07/666,242.91
  6. Step 6: Final answer
    x = 497,242.23

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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.