Home / 2,190,456.07-3,022,829.20-1,223,586.35

Finding the Fourth Proportional to 2,190,456.07, 3,022,829.20 and 1,223,586.35

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Solution

The fourth proportional to 2,190,456.07, 3,022,829.20 and 1,223,586.35 is: 1,688,549.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,456.07 : 3,022,829.20 = 1,223,586.35 : x
  2. Step 2: Convert to fraction form
    2,190,456.07/3,022,829.20 = 1,223,586.35/x
  3. Step 3: Cross multiply
    2,190,456.07x = 3,022,829.20 × 1,223,586.35
  4. Step 4: Simplify right side
    2,190,456.07x = 3,698,692,551,999.53
  5. Step 5: Solve for x
    x = 3,698,692,551,999.53/2,190,456.07
  6. Step 6: Final answer
    x = 1,688,549.07

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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.