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Finding the Fourth Proportional to 627,484.32, 865,949.16 and 369,314.44

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Solution

The fourth proportional to 627,484.32, 865,949.16 and 369,314.44 is: 509,666.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,484.32 : 865,949.16 = 369,314.44 : x
  2. Step 2: Convert to fraction form
    627,484.32/865,949.16 = 369,314.44/x
  3. Step 3: Cross multiply
    627,484.32x = 865,949.16 × 369,314.44
  4. Step 4: Simplify right side
    627,484.32x = 319,807,529,093.87
  5. Step 5: Solve for x
    x = 319,807,529,093.87/627,484.32
  6. Step 6: Final answer
    x = 509,666.17

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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.