Home / 591,911.42-817,059.89-387,975.48

Finding the Fourth Proportional to 591,911.42, 817,059.89 and 387,975.48

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Solution

The fourth proportional to 591,911.42, 817,059.89 and 387,975.48 is: 535,551.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,911.42 : 817,059.89 = 387,975.48 : x
  2. Step 2: Convert to fraction form
    591,911.42/817,059.89 = 387,975.48/x
  3. Step 3: Cross multiply
    591,911.42x = 817,059.89 × 387,975.48
  4. Step 4: Simplify right side
    591,911.42x = 316,999,199,721.50
  5. Step 5: Solve for x
    x = 316,999,199,721.50/591,911.42
  6. Step 6: Final answer
    x = 535,551.76

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1.5x scale

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.