Home / 1,947,125.70-2,920,688.55-1,107,317.70

Finding the Fourth Proportional to 1,947,125.70, 2,920,688.55 and 1,107,317.70

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Solution

The fourth proportional to 1,947,125.70, 2,920,688.55 and 1,107,317.70 is: 1,660,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,125.70 : 2,920,688.55 = 1,107,317.70 : x
  2. Step 2: Convert to fraction form
    1,947,125.70/2,920,688.55 = 1,107,317.70/x
  3. Step 3: Cross multiply
    1,947,125.70x = 2,920,688.55 × 1,107,317.70
  4. Step 4: Simplify right side
    1,947,125.70x = 3,234,130,127,602.33
  5. Step 5: Solve for x
    x = 3,234,130,127,602.33/1,947,125.70
  6. Step 6: Final answer
    x = 1,660,976.55

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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.