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Finding the Fourth Proportional to 538,899.64, 808,349.38 and 302,260.78

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Solution

The fourth proportional to 538,899.64, 808,349.38 and 302,260.78 is: 453,391.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,899.64 : 808,349.38 = 302,260.78 : x
  2. Step 2: Convert to fraction form
    538,899.64/808,349.38 = 302,260.78/x
  3. Step 3: Cross multiply
    538,899.64x = 808,349.38 × 302,260.78
  4. Step 4: Simplify right side
    538,899.64x = 244,332,314,111.32
  5. Step 5: Solve for x
    x = 244,332,314,111.32/538,899.64
  6. Step 6: Final answer
    x = 453,391.13

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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.