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Finding the Fourth Proportional to 637,971.92, 880,368.64 and 351,486.24

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Solution

The fourth proportional to 637,971.92, 880,368.64 and 351,486.24 is: 485,033.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,971.92 : 880,368.64 = 351,486.24 : x
  2. Step 2: Convert to fraction form
    637,971.92/880,368.64 = 351,486.24/x
  3. Step 3: Cross multiply
    637,971.92x = 880,368.64 × 351,486.24
  4. Step 4: Simplify right side
    637,971.92x = 309,437,463,087.51
  5. Step 5: Solve for x
    x = 309,437,463,087.51/637,971.92
  6. Step 6: Final answer
    x = 485,033.05

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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.