Home / 1,509,864.86-2,083,551.03-821,539.55

Finding the Fourth Proportional to 1,509,864.86, 2,083,551.03 and 821,539.55

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Solution

The fourth proportional to 1,509,864.86, 2,083,551.03 and 821,539.55 is: 1,133,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,864.86 : 2,083,551.03 = 821,539.55 : x
  2. Step 2: Convert to fraction form
    1,509,864.86/2,083,551.03 = 821,539.55/x
  3. Step 3: Cross multiply
    1,509,864.86x = 2,083,551.03 × 821,539.55
  4. Step 4: Simplify right side
    1,509,864.86x = 1,711,719,565,170.48
  5. Step 5: Solve for x
    x = 1,711,719,565,170.48/1,509,864.86
  6. Step 6: Final answer
    x = 1,133,690.58

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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.