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Finding the Fourth Proportional to 785,759.64, 1,084,355.82 and 446,230.32

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Solution

The fourth proportional to 785,759.64, 1,084,355.82 and 446,230.32 is: 615,802.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,759.64 : 1,084,355.82 = 446,230.32 : x
  2. Step 2: Convert to fraction form
    785,759.64/1,084,355.82 = 446,230.32/x
  3. Step 3: Cross multiply
    785,759.64x = 1,084,355.82 × 446,230.32
  4. Step 4: Simplify right side
    785,759.64x = 483,872,444,552.46
  5. Step 5: Solve for x
    x = 483,872,444,552.46/785,759.64
  6. Step 6: Final answer
    x = 615,802.11

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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.