Home / 780,981.18-1,169,580.62-540,420.71

Finding the Fourth Proportional to 780,981.18, 1,169,580.62 and 540,420.71

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Solution

The fourth proportional to 780,981.18, 1,169,580.62 and 540,420.71 is: 809,322.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,981.18 : 1,169,580.62 = 540,420.71 : x
  2. Step 2: Convert to fraction form
    780,981.18/1,169,580.62 = 540,420.71/x
  3. Step 3: Cross multiply
    780,981.18x = 1,169,580.62 × 540,420.71
  4. Step 4: Simplify right side
    780,981.18x = 632,065,580,512.63
  5. Step 5: Solve for x
    x = 632,065,580,512.63/780,981.18
  6. Step 6: Final answer
    x = 809,322.42

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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.