Home / 840,124.71-1,260,187.33-209,038.53

Finding the Fourth Proportional to 840,124.71, 1,260,187.33 and 209,038.53

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Solution

The fourth proportional to 840,124.71, 1,260,187.33 and 209,038.53 is: 313,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,124.71 : 1,260,187.33 = 209,038.53 : x
  2. Step 2: Convert to fraction form
    840,124.71/1,260,187.33 = 209,038.53/x
  3. Step 3: Cross multiply
    840,124.71x = 1,260,187.33 × 209,038.53
  4. Step 4: Simplify right side
    840,124.71x = 263,427,706,987.83
  5. Step 5: Solve for x
    x = 263,427,706,987.83/840,124.71
  6. Step 6: Final answer
    x = 313,557.86

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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.