Home / 2,190,173.18-3,022,407.15-1,223,317.22

Finding the Fourth Proportional to 2,190,173.18, 3,022,407.15 and 1,223,317.22

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Solution

The fourth proportional to 2,190,173.18, 3,022,407.15 and 1,223,317.22 is: 1,688,159.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,173.18 : 3,022,407.15 = 1,223,317.22 : x
  2. Step 2: Convert to fraction form
    2,190,173.18/3,022,407.15 = 1,223,317.22/x
  3. Step 3: Cross multiply
    2,190,173.18x = 3,022,407.15 × 1,223,317.22
  4. Step 4: Simplify right side
    2,190,173.18x = 3,697,362,712,446.12
  5. Step 5: Solve for x
    x = 3,697,362,712,446.12/2,190,173.18
  6. Step 6: Final answer
    x = 1,688,159.98

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1.5x scale

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.