Home / 927,540.80-1,390,274.40-394,971.20

Finding the Fourth Proportional to 927,540.80, 1,390,274.40 and 394,971.20

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Solution

The fourth proportional to 927,540.80, 1,390,274.40 and 394,971.20 is: 592,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,540.80 : 1,390,274.40 = 394,971.20 : x
  2. Step 2: Convert to fraction form
    927,540.80/1,390,274.40 = 394,971.20/x
  3. Step 3: Cross multiply
    927,540.80x = 1,390,274.40 × 394,971.20
  4. Step 4: Simplify right side
    927,540.80x = 549,118,348,097.28
  5. Step 5: Solve for x
    x = 549,118,348,097.28/927,540.80
  6. Step 6: Final answer
    x = 592,015.30

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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.