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Finding the Fourth Proportional to 536,587.61, 740,329.42 and 321,649.25

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Solution

The fourth proportional to 536,587.61, 740,329.42 and 321,649.25 is: 443,779.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,587.61 : 740,329.42 = 321,649.25 : x
  2. Step 2: Convert to fraction form
    536,587.61/740,329.42 = 321,649.25/x
  3. Step 3: Cross multiply
    536,587.61x = 740,329.42 × 321,649.25
  4. Step 4: Simplify right side
    536,587.61x = 238,126,402,695.94
  5. Step 5: Solve for x
    x = 238,126,402,695.94/536,587.61
  6. Step 6: Final answer
    x = 443,779.17

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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.