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Finding the Fourth Proportional to 571,247.64, 787,412.34 and 450,194.76

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Solution

The fourth proportional to 571,247.64, 787,412.34 and 450,194.76 is: 620,552.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,247.64 : 787,412.34 = 450,194.76 : x
  2. Step 2: Convert to fraction form
    571,247.64/787,412.34 = 450,194.76/x
  3. Step 3: Cross multiply
    571,247.64x = 787,412.34 × 450,194.76
  4. Step 4: Simplify right side
    571,247.64x = 354,488,909,427.34
  5. Step 5: Solve for x
    x = 354,488,909,427.34/571,247.64
  6. Step 6: Final answer
    x = 620,552.08

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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.