Home / 642,795.66-964,203.22-243,329.18

Finding the Fourth Proportional to 642,795.66, 964,203.22 and 243,329.18

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Solution

The fourth proportional to 642,795.66, 964,203.22 and 243,329.18 is: 364,997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,795.66 : 964,203.22 = 243,329.18 : x
  2. Step 2: Convert to fraction form
    642,795.66/964,203.22 = 243,329.18/x
  3. Step 3: Cross multiply
    642,795.66x = 964,203.22 × 243,329.18
  4. Step 4: Simplify right side
    642,795.66x = 234,618,778,875.96
  5. Step 5: Solve for x
    x = 234,618,778,875.96/642,795.66
  6. Step 6: Final answer
    x = 364,997.45

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Double scale
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Similar ratio
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1.5x scale

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.