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Finding the Fourth Proportional to 434,879.90, 651,470.96 and 299,624.88

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Solution

The fourth proportional to 434,879.90, 651,470.96 and 299,624.88 is: 448,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,879.90 : 651,470.96 = 299,624.88 : x
  2. Step 2: Convert to fraction form
    434,879.90/651,470.96 = 299,624.88/x
  3. Step 3: Cross multiply
    434,879.90x = 651,470.96 × 299,624.88
  4. Step 4: Simplify right side
    434,879.90x = 195,196,908,213.49
  5. Step 5: Solve for x
    x = 195,196,908,213.49/434,879.90
  6. Step 6: Final answer
    x = 448,852.45

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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.