Home / 1,181,288-1,630,332.90-665,142.48

Finding the Fourth Proportional to 1,181,288, 1,630,332.90 and 665,142.48

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Solution

The fourth proportional to 1,181,288, 1,630,332.90 and 665,142.48 is: 917,984.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,288 : 1,630,332.90 = 665,142.48 : x
  2. Step 2: Convert to fraction form
    1,181,288/1,630,332.90 = 665,142.48/x
  3. Step 3: Cross multiply
    1,181,288x = 1,630,332.90 × 665,142.48
  4. Step 4: Simplify right side
    1,181,288x = 1,084,403,668,331.59
  5. Step 5: Solve for x
    x = 1,084,403,668,331.59/1,181,288
  6. Step 6: Final answer
    x = 917,984.16

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Similar ratio
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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.