Home / 607,534.20-909,989.10-326,723.40

Finding the Fourth Proportional to 607,534.20, 909,989.10 and 326,723.40

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Solution

The fourth proportional to 607,534.20, 909,989.10 and 326,723.40 is: 489,379.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,534.20 : 909,989.10 = 326,723.40 : x
  2. Step 2: Convert to fraction form
    607,534.20/909,989.10 = 326,723.40/x
  3. Step 3: Cross multiply
    607,534.20x = 909,989.10 × 326,723.40
  4. Step 4: Simplify right side
    607,534.20x = 297,314,732,714.94
  5. Step 5: Solve for x
    x = 297,314,732,714.94/607,534.20
  6. Step 6: Final answer
    x = 489,379.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.