Home / 646,835.95-969,181.29-393,349.66

Finding the Fourth Proportional to 646,835.95, 969,181.29 and 393,349.66

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Solution

The fourth proportional to 646,835.95, 969,181.29 and 393,349.66 is: 589,372.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,835.95 : 969,181.29 = 393,349.66 : x
  2. Step 2: Convert to fraction form
    646,835.95/969,181.29 = 393,349.66/x
  3. Step 3: Cross multiply
    646,835.95x = 969,181.29 × 393,349.66
  4. Step 4: Simplify right side
    646,835.95x = 381,227,130,899.86
  5. Step 5: Solve for x
    x = 381,227,130,899.86/646,835.95
  6. Step 6: Final answer
    x = 589,372.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.