Home / 711,799.76-982,283.64-389,509.92

Finding the Fourth Proportional to 711,799.76, 982,283.64 and 389,509.92

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Solution

The fourth proportional to 711,799.76, 982,283.64 and 389,509.92 is: 537,523.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,799.76 : 982,283.64 = 389,509.92 : x
  2. Step 2: Convert to fraction form
    711,799.76/982,283.64 = 389,509.92/x
  3. Step 3: Cross multiply
    711,799.76x = 982,283.64 × 389,509.92
  4. Step 4: Simplify right side
    711,799.76x = 382,609,222,033.71
  5. Step 5: Solve for x
    x = 382,609,222,033.71/711,799.76
  6. Step 6: Final answer
    x = 537,523.67

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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.