Home / 3,128,870.86-4,694,038.59-969,783.13

Finding the Fourth Proportional to 3,128,870.86, 4,694,038.59 and 969,783.13

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Solution

The fourth proportional to 3,128,870.86, 4,694,038.59 and 969,783.13 is: 1,454,901.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,870.86 : 4,694,038.59 = 969,783.13 : x
  2. Step 2: Convert to fraction form
    3,128,870.86/4,694,038.59 = 969,783.13/x
  3. Step 3: Cross multiply
    3,128,870.86x = 4,694,038.59 × 969,783.13
  4. Step 4: Simplify right side
    3,128,870.86x = 4,552,199,436,150.99
  5. Step 5: Solve for x
    x = 4,552,199,436,150.99/3,128,870.86
  6. Step 6: Final answer
    x = 1,454,901.67

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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.