Home / 835,781.50-1,153,378.47-478,085.50

Finding the Fourth Proportional to 835,781.50, 1,153,378.47 and 478,085.50

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Solution

The fourth proportional to 835,781.50, 1,153,378.47 and 478,085.50 is: 659,757.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,781.50 : 1,153,378.47 = 478,085.50 : x
  2. Step 2: Convert to fraction form
    835,781.50/1,153,378.47 = 478,085.50/x
  3. Step 3: Cross multiply
    835,781.50x = 1,153,378.47 × 478,085.50
  4. Step 4: Simplify right side
    835,781.50x = 551,413,522,519.19
  5. Step 5: Solve for x
    x = 551,413,522,519.19/835,781.50
  6. Step 6: Final answer
    x = 659,757.99

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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.