Home / 666,664.23-919,989.90-360,733.89

Finding the Fourth Proportional to 666,664.23, 919,989.90 and 360,733.89

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Solution

The fourth proportional to 666,664.23, 919,989.90 and 360,733.89 is: 497,809.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,664.23 : 919,989.90 = 360,733.89 : x
  2. Step 2: Convert to fraction form
    666,664.23/919,989.90 = 360,733.89/x
  3. Step 3: Cross multiply
    666,664.23x = 919,989.90 × 360,733.89
  4. Step 4: Simplify right side
    666,664.23x = 331,871,535,387.71
  5. Step 5: Solve for x
    x = 331,871,535,387.71/666,664.23
  6. Step 6: Final answer
    x = 497,809.12

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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.