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Finding the Fourth Proportional to 607,640.28, 912,032.40 and 308,335.62

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Solution

The fourth proportional to 607,640.28, 912,032.40 and 308,335.62 is: 462,793.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,640.28 : 912,032.40 = 308,335.62 : x
  2. Step 2: Convert to fraction form
    607,640.28/912,032.40 = 308,335.62/x
  3. Step 3: Cross multiply
    607,640.28x = 912,032.40 × 308,335.62
  4. Step 4: Simplify right side
    607,640.28x = 281,212,075,514.09
  5. Step 5: Solve for x
    x = 281,212,075,514.09/607,640.28
  6. Step 6: Final answer
    x = 462,793.67

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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.