Home / 1,078,348.38-1,617,382.02-320,174.60

Finding the Fourth Proportional to 1,078,348.38, 1,617,382.02 and 320,174.60

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Solution

The fourth proportional to 1,078,348.38, 1,617,382.02 and 320,174.60 is: 480,220.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,348.38 : 1,617,382.02 = 320,174.60 : x
  2. Step 2: Convert to fraction form
    1,078,348.38/1,617,382.02 = 320,174.60/x
  3. Step 3: Cross multiply
    1,078,348.38x = 1,617,382.02 × 320,174.60
  4. Step 4: Simplify right side
    1,078,348.38x = 517,844,641,300.69
  5. Step 5: Solve for x
    x = 517,844,641,300.69/1,078,348.38
  6. Step 6: Final answer
    x = 480,220.17

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Double scale
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1.5x scale

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.