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Finding the Fourth Proportional to 647,294.96, 893,248.45 and 360,808.90

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Solution

The fourth proportional to 647,294.96, 893,248.45 and 360,808.90 is: 497,905.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,294.96 : 893,248.45 = 360,808.90 : x
  2. Step 2: Convert to fraction form
    647,294.96/893,248.45 = 360,808.90/x
  3. Step 3: Cross multiply
    647,294.96x = 893,248.45 × 360,808.90
  4. Step 4: Simplify right side
    647,294.96x = 322,291,987,536.06
  5. Step 5: Solve for x
    x = 322,291,987,536.06/647,294.96
  6. Step 6: Final answer
    x = 497,905.91

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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.