Home / 1,947,912.89-2,688,068.22-1,088,480.21

Finding the Fourth Proportional to 1,947,912.89, 2,688,068.22 and 1,088,480.21

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Solution

The fourth proportional to 1,947,912.89, 2,688,068.22 and 1,088,480.21 is: 1,502,073.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,912.89 : 2,688,068.22 = 1,088,480.21 : x
  2. Step 2: Convert to fraction form
    1,947,912.89/2,688,068.22 = 1,088,480.21/x
  3. Step 3: Cross multiply
    1,947,912.89x = 2,688,068.22 × 1,088,480.21
  4. Step 4: Simplify right side
    1,947,912.89x = 2,925,909,059,280.74
  5. Step 5: Solve for x
    x = 2,925,909,059,280.74/1,947,912.89
  6. Step 6: Final answer
    x = 1,502,073.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.