Home / 666,117.96-919,220.04-379,730.31

Finding the Fourth Proportional to 666,117.96, 919,220.04 and 379,730.31

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Solution

The fourth proportional to 666,117.96, 919,220.04 and 379,730.31 is: 524,014.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,117.96 : 919,220.04 = 379,730.31 : x
  2. Step 2: Convert to fraction form
    666,117.96/919,220.04 = 379,730.31/x
  3. Step 3: Cross multiply
    666,117.96x = 919,220.04 × 379,730.31
  4. Step 4: Simplify right side
    666,117.96x = 349,055,710,747.41
  5. Step 5: Solve for x
    x = 349,055,710,747.41/666,117.96
  6. Step 6: Final answer
    x = 524,014.86

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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.