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Finding the Fourth Proportional to 493,114.80, 740,363.40 and 306,490.80

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Solution

The fourth proportional to 493,114.80, 740,363.40 and 306,490.80 is: 460,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,114.80 : 740,363.40 = 306,490.80 : x
  2. Step 2: Convert to fraction form
    493,114.80/740,363.40 = 306,490.80/x
  3. Step 3: Cross multiply
    493,114.80x = 740,363.40 × 306,490.80
  4. Step 4: Simplify right side
    493,114.80x = 226,914,570,756.72
  5. Step 5: Solve for x
    x = 226,914,570,756.72/493,114.80
  6. Step 6: Final answer
    x = 460,165.81

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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.