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Finding the Fourth Proportional to 637,971.50, 880,420.60 and 366,089.12

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Solution

The fourth proportional to 637,971.50, 880,420.60 and 366,089.12 is: 505,214.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,971.50 : 880,420.60 = 366,089.12 : x
  2. Step 2: Convert to fraction form
    637,971.50/880,420.60 = 366,089.12/x
  3. Step 3: Cross multiply
    637,971.50x = 880,420.60 × 366,089.12
  4. Step 4: Simplify right side
    637,971.50x = 322,312,405,342.54
  5. Step 5: Solve for x
    x = 322,312,405,342.54/637,971.50
  6. Step 6: Final answer
    x = 505,214.43

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Double scale
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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.