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Finding the Fourth Proportional to 802,918.72, 1,107,948 and 463,496.32

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Solution

The fourth proportional to 802,918.72, 1,107,948 and 463,496.32 is: 639,578.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,918.72 : 1,107,948 = 463,496.32 : x
  2. Step 2: Convert to fraction form
    802,918.72/1,107,948 = 463,496.32/x
  3. Step 3: Cross multiply
    802,918.72x = 1,107,948 × 463,496.32
  4. Step 4: Simplify right side
    802,918.72x = 513,529,820,751.36
  5. Step 5: Solve for x
    x = 513,529,820,751.36/802,918.72
  6. Step 6: Final answer
    x = 639,578.84

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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.