Home / 527,615.71-727,828.89-320,947.29

Finding the Fourth Proportional to 527,615.71, 727,828.89 and 320,947.29

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Solution

The fourth proportional to 527,615.71, 727,828.89 and 320,947.29 is: 442,736.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,615.71 : 727,828.89 = 320,947.29 : x
  2. Step 2: Convert to fraction form
    527,615.71/727,828.89 = 320,947.29/x
  3. Step 3: Cross multiply
    527,615.71x = 727,828.89 × 320,947.29
  4. Step 4: Simplify right side
    527,615.71x = 233,594,709,829.21
  5. Step 5: Solve for x
    x = 233,594,709,829.21/527,615.71
  6. Step 6: Final answer
    x = 442,736.46

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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.