Home / 679,742.97-938,023.81-373,818.41

Finding the Fourth Proportional to 679,742.97, 938,023.81 and 373,818.41

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Solution

The fourth proportional to 679,742.97, 938,023.81 and 373,818.41 is: 515,857.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,742.97 : 938,023.81 = 373,818.41 : x
  2. Step 2: Convert to fraction form
    679,742.97/938,023.81 = 373,818.41/x
  3. Step 3: Cross multiply
    679,742.97x = 938,023.81 × 373,818.41
  4. Step 4: Simplify right side
    679,742.97x = 350,650,569,196.34
  5. Step 5: Solve for x
    x = 350,650,569,196.34/679,742.97
  6. Step 6: Final answer
    x = 515,857.59

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1.5x scale

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.