Home / 804,917.40-1,207,376.10-538,978.20

Finding the Fourth Proportional to 804,917.40, 1,207,376.10 and 538,978.20

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Solution

The fourth proportional to 804,917.40, 1,207,376.10 and 538,978.20 is: 808,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,917.40 : 1,207,376.10 = 538,978.20 : x
  2. Step 2: Convert to fraction form
    804,917.40/1,207,376.10 = 538,978.20/x
  3. Step 3: Cross multiply
    804,917.40x = 1,207,376.10 × 538,978.20
  4. Step 4: Simplify right side
    804,917.40x = 650,749,397,101.02
  5. Step 5: Solve for x
    x = 650,749,397,101.02/804,917.40
  6. Step 6: Final answer
    x = 808,467.30

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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.