Home / 1,781,439.60-2,671,900.20-519,135.60

Finding the Fourth Proportional to 1,781,439.60, 2,671,900.20 and 519,135.60

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Solution

The fourth proportional to 1,781,439.60, 2,671,900.20 and 519,135.60 is: 778,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,439.60 : 2,671,900.20 = 519,135.60 : x
  2. Step 2: Convert to fraction form
    1,781,439.60/2,671,900.20 = 519,135.60/x
  3. Step 3: Cross multiply
    1,781,439.60x = 2,671,900.20 × 519,135.60
  4. Step 4: Simplify right side
    1,781,439.60x = 1,387,078,513,467.12
  5. Step 5: Solve for x
    x = 1,387,078,513,467.12/1,781,439.60
  6. Step 6: Final answer
    x = 778,627.87

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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.