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Finding the Fourth Proportional to 571,359.77, 788,459.41 and 313,227.89

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Solution

The fourth proportional to 571,359.77, 788,459.41 and 313,227.89 is: 432,245.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,359.77 : 788,459.41 = 313,227.89 : x
  2. Step 2: Convert to fraction form
    571,359.77/788,459.41 = 313,227.89/x
  3. Step 3: Cross multiply
    571,359.77x = 788,459.41 × 313,227.89
  4. Step 4: Simplify right side
    571,359.77x = 246,967,478,533.02
  5. Step 5: Solve for x
    x = 246,967,478,533.02/571,359.77
  6. Step 6: Final answer
    x = 432,245.13

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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.