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Finding the Fourth Proportional to 434,582.40, 651,873.60 and 345,352.80

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Solution

The fourth proportional to 434,582.40, 651,873.60 and 345,352.80 is: 518,029.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,582.40 : 651,873.60 = 345,352.80 : x
  2. Step 2: Convert to fraction form
    434,582.40/651,873.60 = 345,352.80/x
  3. Step 3: Cross multiply
    434,582.40x = 651,873.60 × 345,352.80
  4. Step 4: Simplify right side
    434,582.40x = 225,126,373,006.08
  5. Step 5: Solve for x
    x = 225,126,373,006.08/434,582.40
  6. Step 6: Final answer
    x = 518,029.20

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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.