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Finding the Fourth Proportional to 647,317.58, 893,265.54 and 360,782.30

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Solution

The fourth proportional to 647,317.58, 893,265.54 and 360,782.30 is: 497,861.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,317.58 : 893,265.54 = 360,782.30 : x
  2. Step 2: Convert to fraction form
    647,317.58/893,265.54 = 360,782.30/x
  3. Step 3: Cross multiply
    647,317.58x = 893,265.54 × 360,782.30
  4. Step 4: Simplify right side
    647,317.58x = 322,274,391,565.61
  5. Step 5: Solve for x
    x = 322,274,391,565.61/647,317.58
  6. Step 6: Final answer
    x = 497,861.33

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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.