Home / 804,962.40-1,207,443.60-720,981.60

Finding the Fourth Proportional to 804,962.40, 1,207,443.60 and 720,981.60

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Solution

The fourth proportional to 804,962.40, 1,207,443.60 and 720,981.60 is: 1,081,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,962.40 : 1,207,443.60 = 720,981.60 : x
  2. Step 2: Convert to fraction form
    804,962.40/1,207,443.60 = 720,981.60/x
  3. Step 3: Cross multiply
    804,962.40x = 1,207,443.60 × 720,981.60
  4. Step 4: Simplify right side
    804,962.40x = 870,544,618,637.76
  5. Step 5: Solve for x
    x = 870,544,618,637.76/804,962.40
  6. Step 6: Final answer
    x = 1,081,472.40

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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.