Home / 675,905.70-932,731.38-385,510.72

Finding the Fourth Proportional to 675,905.70, 932,731.38 and 385,510.72

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Solution

The fourth proportional to 675,905.70, 932,731.38 and 385,510.72 is: 531,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,905.70 : 932,731.38 = 385,510.72 : x
  2. Step 2: Convert to fraction form
    675,905.70/932,731.38 = 385,510.72/x
  3. Step 3: Cross multiply
    675,905.70x = 932,731.38 × 385,510.72
  4. Step 4: Simplify right side
    675,905.70x = 359,577,945,870.39
  5. Step 5: Solve for x
    x = 359,577,945,870.39/675,905.70
  6. Step 6: Final answer
    x = 531,994.25

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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.