Home / 2,912,383.76-4,018,979.97-1,688,740.92

Finding the Fourth Proportional to 2,912,383.76, 4,018,979.97 and 1,688,740.92

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Solution

The fourth proportional to 2,912,383.76, 4,018,979.97 and 1,688,740.92 is: 2,330,398.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,383.76 : 4,018,979.97 = 1,688,740.92 : x
  2. Step 2: Convert to fraction form
    2,912,383.76/4,018,979.97 = 1,688,740.92/x
  3. Step 3: Cross multiply
    2,912,383.76x = 4,018,979.97 × 1,688,740.92
  4. Step 4: Simplify right side
    2,912,383.76x = 6,787,015,931,999.37
  5. Step 5: Solve for x
    x = 6,787,015,931,999.37/2,912,383.76
  6. Step 6: Final answer
    x = 2,330,398.91

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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.