Home / 646,983.16-892,836.78-375,208.67

Finding the Fourth Proportional to 646,983.16, 892,836.78 and 375,208.67

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Solution

The fourth proportional to 646,983.16, 892,836.78 and 375,208.67 is: 517,787.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,983.16 : 892,836.78 = 375,208.67 : x
  2. Step 2: Convert to fraction form
    646,983.16/892,836.78 = 375,208.67/x
  3. Step 3: Cross multiply
    646,983.16x = 892,836.78 × 375,208.67
  4. Step 4: Simplify right side
    646,983.16x = 335,000,100,750.88
  5. Step 5: Solve for x
    x = 335,000,100,750.88/646,983.16
  6. Step 6: Final answer
    x = 517,787.98

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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.