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Finding the Fourth Proportional to 599,542.40, 899,313.60 and 319,606.40

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Solution

The fourth proportional to 599,542.40, 899,313.60 and 319,606.40 is: 479,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,542.40 : 899,313.60 = 319,606.40 : x
  2. Step 2: Convert to fraction form
    599,542.40/899,313.60 = 319,606.40/x
  3. Step 3: Cross multiply
    599,542.40x = 899,313.60 × 319,606.40
  4. Step 4: Simplify right side
    599,542.40x = 287,426,382,167.04
  5. Step 5: Solve for x
    x = 287,426,382,167.04/599,542.40
  6. Step 6: Final answer
    x = 479,409.60

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Similar ratio
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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.