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Finding the Fourth Proportional to 710,213.97, 980,089.46 and 387,924.27

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Solution

The fourth proportional to 710,213.97, 980,089.46 and 387,924.27 is: 535,332.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,213.97 : 980,089.46 = 387,924.27 : x
  2. Step 2: Convert to fraction form
    710,213.97/980,089.46 = 387,924.27/x
  3. Step 3: Cross multiply
    710,213.97x = 980,089.46 × 387,924.27
  4. Step 4: Simplify right side
    710,213.97x = 380,200,486,365.57
  5. Step 5: Solve for x
    x = 380,200,486,365.57/710,213.97
  6. Step 6: Final answer
    x = 535,332.31

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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.