Home / 2,015,255.70-2,781,307.13-1,155,797.51

Finding the Fourth Proportional to 2,015,255.70, 2,781,307.13 and 1,155,797.51

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Solution

The fourth proportional to 2,015,255.70, 2,781,307.13 and 1,155,797.51 is: 1,595,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015,255.70 : 2,781,307.13 = 1,155,797.51 : x
  2. Step 2: Convert to fraction form
    2,015,255.70/2,781,307.13 = 1,155,797.51/x
  3. Step 3: Cross multiply
    2,015,255.70x = 2,781,307.13 × 1,155,797.51
  4. Step 4: Simplify right side
    2,015,255.70x = 3,214,627,835,713.72
  5. Step 5: Solve for x
    x = 3,214,627,835,713.72/2,015,255.70
  6. Step 6: Final answer
    x = 1,595,146.38

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Double scale
Find fourth proportional to 2,015,256.70, 2,781,308.51 and 1,155,798.51
Similar ratio
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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.