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Finding the Fourth Proportional to 666,498.24, 919,763.73 and 360,573.66

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Solution

The fourth proportional to 666,498.24, 919,763.73 and 360,573.66 is: 497,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,498.24 : 919,763.73 = 360,573.66 : x
  2. Step 2: Convert to fraction form
    666,498.24/919,763.73 = 360,573.66/x
  3. Step 3: Cross multiply
    666,498.24x = 919,763.73 × 360,573.66
  4. Step 4: Simplify right side
    666,498.24x = 331,642,574,461.35
  5. Step 5: Solve for x
    x = 331,642,574,461.35/666,498.24
  6. Step 6: Final answer
    x = 497,589.57

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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.