Home / 1,853,607.40-2,781,447.90-788,468.20

Finding the Fourth Proportional to 1,853,607.40, 2,781,447.90 and 788,468.20

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Solution

The fourth proportional to 1,853,607.40, 2,781,447.90 and 788,468.20 is: 1,183,143.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853,607.40 : 2,781,447.90 = 788,468.20 : x
  2. Step 2: Convert to fraction form
    1,853,607.40/2,781,447.90 = 788,468.20/x
  3. Step 3: Cross multiply
    1,853,607.40x = 2,781,447.90 × 788,468.20
  4. Step 4: Simplify right side
    1,853,607.40x = 2,193,083,219,106.78
  5. Step 5: Solve for x
    x = 2,193,083,219,106.78/1,853,607.40
  6. Step 6: Final answer
    x = 1,183,143.32

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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.