Home / 804,366.78-1,109,756.07-455,459.50

Finding the Fourth Proportional to 804,366.78, 1,109,756.07 and 455,459.50

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Solution

The fourth proportional to 804,366.78, 1,109,756.07 and 455,459.50 is: 628,381.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,366.78 : 1,109,756.07 = 455,459.50 : x
  2. Step 2: Convert to fraction form
    804,366.78/1,109,756.07 = 455,459.50/x
  3. Step 3: Cross multiply
    804,366.78x = 1,109,756.07 × 455,459.50
  4. Step 4: Simplify right side
    804,366.78x = 505,448,940,188.60
  5. Step 5: Solve for x
    x = 505,448,940,188.60/804,366.78
  6. Step 6: Final answer
    x = 628,381.17

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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.