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Finding the Fourth Proportional to 607,335.30, 909,235.01 and 318,461.94

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Solution

The fourth proportional to 607,335.30, 909,235.01 and 318,461.94 is: 476,765.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,335.30 : 909,235.01 = 318,461.94 : x
  2. Step 2: Convert to fraction form
    607,335.30/909,235.01 = 318,461.94/x
  3. Step 3: Cross multiply
    607,335.30x = 909,235.01 × 318,461.94
  4. Step 4: Simplify right side
    607,335.30x = 289,556,745,996.67
  5. Step 5: Solve for x
    x = 289,556,745,996.67/607,335.30
  6. Step 6: Final answer
    x = 476,765.88

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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.