Home / 804,516.80-1,109,915.75-518,203.07

Finding the Fourth Proportional to 804,516.80, 1,109,915.75 and 518,203.07

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Solution

The fourth proportional to 804,516.80, 1,109,915.75 and 518,203.07 is: 714,915.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,516.80 : 1,109,915.75 = 518,203.07 : x
  2. Step 2: Convert to fraction form
    804,516.80/1,109,915.75 = 518,203.07/x
  3. Step 3: Cross multiply
    804,516.80x = 1,109,915.75 × 518,203.07
  4. Step 4: Simplify right side
    804,516.80x = 575,161,749,091.35
  5. Step 5: Solve for x
    x = 575,161,749,091.35/804,516.80
  6. Step 6: Final answer
    x = 714,915.77

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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.