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Finding the Fourth Proportional to 567,284.72, 782,853.03 and 309,161.72

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Solution

The fourth proportional to 567,284.72, 782,853.03 and 309,161.72 is: 426,643.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,284.72 : 782,853.03 = 309,161.72 : x
  2. Step 2: Convert to fraction form
    567,284.72/782,853.03 = 309,161.72/x
  3. Step 3: Cross multiply
    567,284.72x = 782,853.03 × 309,161.72
  4. Step 4: Simplify right side
    567,284.72x = 242,028,191,219.14
  5. Step 5: Solve for x
    x = 242,028,191,219.14/567,284.72
  6. Step 6: Final answer
    x = 426,643.24

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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.