Home / 804,347.93-1,109,730.07-455,440.74

Finding the Fourth Proportional to 804,347.93, 1,109,730.07 and 455,440.74

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Solution

The fourth proportional to 804,347.93, 1,109,730.07 and 455,440.74 is: 628,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,347.93 : 1,109,730.07 = 455,440.74 : x
  2. Step 2: Convert to fraction form
    804,347.93/1,109,730.07 = 455,440.74/x
  3. Step 3: Cross multiply
    804,347.93x = 1,109,730.07 × 455,440.74
  4. Step 4: Simplify right side
    804,347.93x = 505,416,280,119.56
  5. Step 5: Solve for x
    x = 505,416,280,119.56/804,347.93
  6. Step 6: Final answer
    x = 628,355.30

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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.