Home / 670,032.20-1,005,071.90-214,637.28

Finding the Fourth Proportional to 670,032.20, 1,005,071.90 and 214,637.28

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Solution

The fourth proportional to 670,032.20, 1,005,071.90 and 214,637.28 is: 321,963.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,032.20 : 1,005,071.90 = 214,637.28 : x
  2. Step 2: Convert to fraction form
    670,032.20/1,005,071.90 = 214,637.28/x
  3. Step 3: Cross multiply
    670,032.20x = 1,005,071.90 × 214,637.28
  4. Step 4: Simplify right side
    670,032.20x = 215,725,898,820.43
  5. Step 5: Solve for x
    x = 215,725,898,820.43/670,032.20
  6. Step 6: Final answer
    x = 321,963.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.