Home / 1,407,969.42-2,108,454.86-1,288,515.42

Finding the Fourth Proportional to 1,407,969.42, 2,108,454.86 and 1,288,515.42

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Solution

The fourth proportional to 1,407,969.42, 2,108,454.86 and 1,288,515.42 is: 1,929,570.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,969.42 : 2,108,454.86 = 1,288,515.42 : x
  2. Step 2: Convert to fraction form
    1,407,969.42/2,108,454.86 = 1,288,515.42/x
  3. Step 3: Cross multiply
    1,407,969.42x = 2,108,454.86 × 1,288,515.42
  4. Step 4: Simplify right side
    1,407,969.42x = 2,716,776,599,483.94
  5. Step 5: Solve for x
    x = 2,716,776,599,483.94/1,407,969.42
  6. Step 6: Final answer
    x = 1,929,570.74

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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.