Home / 1,387,688.25-2,083,345.20-1,114,280.46

Finding the Fourth Proportional to 1,387,688.25, 2,083,345.20 and 1,114,280.46

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Solution

The fourth proportional to 1,387,688.25, 2,083,345.20 and 1,114,280.46 is: 1,672,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,688.25 : 2,083,345.20 = 1,114,280.46 : x
  2. Step 2: Convert to fraction form
    1,387,688.25/2,083,345.20 = 1,114,280.46/x
  3. Step 3: Cross multiply
    1,387,688.25x = 2,083,345.20 × 1,114,280.46
  4. Step 4: Simplify right side
    1,387,688.25x = 2,321,430,847,794.79
  5. Step 5: Solve for x
    x = 2,321,430,847,794.79/1,387,688.25
  6. Step 6: Final answer
    x = 1,672,876.35

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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.