Home / 1,386,761.44-2,078,440.80-788,224

Finding the Fourth Proportional to 1,386,761.44, 2,078,440.80 and 788,224

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Solution

The fourth proportional to 1,386,761.44, 2,078,440.80 and 788,224 is: 1,181,368.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,761.44 : 2,078,440.80 = 788,224 : x
  2. Step 2: Convert to fraction form
    1,386,761.44/2,078,440.80 = 788,224/x
  3. Step 3: Cross multiply
    1,386,761.44x = 2,078,440.80 × 788,224
  4. Step 4: Simplify right side
    1,386,761.44x = 1,638,276,921,139.20
  5. Step 5: Solve for x
    x = 1,638,276,921,139.20/1,386,761.44
  6. Step 6: Final answer
    x = 1,181,368.96

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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.