Home / 1,113,814.88-1,535,902.76-661,018.40

Finding the Fourth Proportional to 1,113,814.88, 1,535,902.76 and 661,018.40

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Solution

The fourth proportional to 1,113,814.88, 1,535,902.76 and 661,018.40 is: 911,515.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,814.88 : 1,535,902.76 = 661,018.40 : x
  2. Step 2: Convert to fraction form
    1,113,814.88/1,535,902.76 = 661,018.40/x
  3. Step 3: Cross multiply
    1,113,814.88x = 1,535,902.76 × 661,018.40
  4. Step 4: Simplify right side
    1,113,814.88x = 1,015,259,984,970.78
  5. Step 5: Solve for x
    x = 1,015,259,984,970.78/1,113,814.88
  6. Step 6: Final answer
    x = 911,515.91

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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.