Home / 527,315.18-727,707.40-300,981.74

Finding the Fourth Proportional to 527,315.18, 727,707.40 and 300,981.74

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Solution

The fourth proportional to 527,315.18, 727,707.40 and 300,981.74 is: 415,361.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,315.18 : 727,707.40 = 300,981.74 : x
  2. Step 2: Convert to fraction form
    527,315.18/727,707.40 = 300,981.74/x
  3. Step 3: Cross multiply
    527,315.18x = 727,707.40 × 300,981.74
  4. Step 4: Simplify right side
    527,315.18x = 219,026,639,462.88
  5. Step 5: Solve for x
    x = 219,026,639,462.88/527,315.18
  6. Step 6: Final answer
    x = 415,361.91

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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.