Home / 872,504.48-1,204,038.78-485,311.52

Finding the Fourth Proportional to 872,504.48, 1,204,038.78 and 485,311.52

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Solution

The fourth proportional to 872,504.48, 1,204,038.78 and 485,311.52 is: 669,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,504.48 : 1,204,038.78 = 485,311.52 : x
  2. Step 2: Convert to fraction form
    872,504.48/1,204,038.78 = 485,311.52/x
  3. Step 3: Cross multiply
    872,504.48x = 1,204,038.78 × 485,311.52
  4. Step 4: Simplify right side
    872,504.48x = 584,333,890,460.75
  5. Step 5: Solve for x
    x = 584,333,890,460.75/872,504.48
  6. Step 6: Final answer
    x = 669,720.22

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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.