Home / 804,040.79-1,109,597.99-455,154.12

Finding the Fourth Proportional to 804,040.79, 1,109,597.99 and 455,154.12

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Solution

The fourth proportional to 804,040.79, 1,109,597.99 and 455,154.12 is: 628,124.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,040.79 : 1,109,597.99 = 455,154.12 : x
  2. Step 2: Convert to fraction form
    804,040.79/1,109,597.99 = 455,154.12/x
  3. Step 3: Cross multiply
    804,040.79x = 1,109,597.99 × 455,154.12
  4. Step 4: Simplify right side
    804,040.79x = 505,038,094,416.45
  5. Step 5: Solve for x
    x = 505,038,094,416.45/804,040.79
  6. Step 6: Final answer
    x = 628,124.97

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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.