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Finding the Fourth Proportional to 704,925.36, 972,353.52 and 418,242

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Solution

The fourth proportional to 704,925.36, 972,353.52 and 418,242 is: 576,910.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,925.36 : 972,353.52 = 418,242 : x
  2. Step 2: Convert to fraction form
    704,925.36/972,353.52 = 418,242/x
  3. Step 3: Cross multiply
    704,925.36x = 972,353.52 × 418,242
  4. Step 4: Simplify right side
    704,925.36x = 406,679,080,911.84
  5. Step 5: Solve for x
    x = 406,679,080,911.84/704,925.36
  6. Step 6: Final answer
    x = 576,910.84

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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.