Home / 804,940.90-1,207,411.35-720,960.10

Finding the Fourth Proportional to 804,940.90, 1,207,411.35 and 720,960.10

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Solution

The fourth proportional to 804,940.90, 1,207,411.35 and 720,960.10 is: 1,081,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,940.90 : 1,207,411.35 = 720,960.10 : x
  2. Step 2: Convert to fraction form
    804,940.90/1,207,411.35 = 720,960.10/x
  3. Step 3: Cross multiply
    804,940.90x = 1,207,411.35 × 720,960.10
  4. Step 4: Simplify right side
    804,940.90x = 870,495,407,637.14
  5. Step 5: Solve for x
    x = 870,495,407,637.14/804,940.90
  6. Step 6: Final answer
    x = 1,081,440.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.