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Finding the Fourth Proportional to 573,721.60, 860,582.40 and 308,300.80

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Solution

The fourth proportional to 573,721.60, 860,582.40 and 308,300.80 is: 462,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,721.60 : 860,582.40 = 308,300.80 : x
  2. Step 2: Convert to fraction form
    573,721.60/860,582.40 = 308,300.80/x
  3. Step 3: Cross multiply
    573,721.60x = 860,582.40 × 308,300.80
  4. Step 4: Simplify right side
    573,721.60x = 265,318,242,385.92
  5. Step 5: Solve for x
    x = 265,318,242,385.92/573,721.60
  6. Step 6: Final answer
    x = 462,451.20

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Similar ratio
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1.5x scale

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.