Home / 2,157,870.74-2,977,649.55-1,190,938.59

Finding the Fourth Proportional to 2,157,870.74, 2,977,649.55 and 1,190,938.59

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Solution

The fourth proportional to 2,157,870.74, 2,977,649.55 and 1,190,938.59 is: 1,643,378.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,870.74 : 2,977,649.55 = 1,190,938.59 : x
  2. Step 2: Convert to fraction form
    2,157,870.74/2,977,649.55 = 1,190,938.59/x
  3. Step 3: Cross multiply
    2,157,870.74x = 2,977,649.55 × 1,190,938.59
  4. Step 4: Simplify right side
    2,157,870.74x = 3,546,197,756,591.14
  5. Step 5: Solve for x
    x = 3,546,197,756,591.14/2,157,870.74
  6. Step 6: Final answer
    x = 1,643,378.21

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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.