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Finding the Fourth Proportional to 565,027.40, 779,786.02 and 320,055.86

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Solution

The fourth proportional to 565,027.40, 779,786.02 and 320,055.86 is: 441,704.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,027.40 : 779,786.02 = 320,055.86 : x
  2. Step 2: Convert to fraction form
    565,027.40/779,786.02 = 320,055.86/x
  3. Step 3: Cross multiply
    565,027.40x = 779,786.02 × 320,055.86
  4. Step 4: Simplify right side
    565,027.40x = 249,575,085,247.08
  5. Step 5: Solve for x
    x = 249,575,085,247.08/565,027.40
  6. Step 6: Final answer
    x = 441,704.39

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Double scale
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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.