Home / 710,845.09-980,966.27-388,556.45

Finding the Fourth Proportional to 710,845.09, 980,966.27 and 388,556.45

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Solution

The fourth proportional to 710,845.09, 980,966.27 and 388,556.45 is: 536,207.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,845.09 : 980,966.27 = 388,556.45 : x
  2. Step 2: Convert to fraction form
    710,845.09/980,966.27 = 388,556.45/x
  3. Step 3: Cross multiply
    710,845.09x = 980,966.27 × 388,556.45
  4. Step 4: Simplify right side
    710,845.09x = 381,160,769,498.16
  5. Step 5: Solve for x
    x = 381,160,769,498.16/710,845.09
  6. Step 6: Final answer
    x = 536,207.92

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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.