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Finding the Fourth Proportional to 671,912.28, 927,238.98 and 370,106.28

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Solution

The fourth proportional to 671,912.28, 927,238.98 and 370,106.28 is: 510,746.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,912.28 : 927,238.98 = 370,106.28 : x
  2. Step 2: Convert to fraction form
    671,912.28/927,238.98 = 370,106.28/x
  3. Step 3: Cross multiply
    671,912.28x = 927,238.98 × 370,106.28
  4. Step 4: Simplify right side
    671,912.28x = 343,176,969,558.79
  5. Step 5: Solve for x
    x = 343,176,969,558.79/671,912.28
  6. Step 6: Final answer
    x = 510,746.68

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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.