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Finding the Fourth Proportional to 530,845.60, 796,268.40 and 490,295.20

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Solution

The fourth proportional to 530,845.60, 796,268.40 and 490,295.20 is: 735,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,845.60 : 796,268.40 = 490,295.20 : x
  2. Step 2: Convert to fraction form
    530,845.60/796,268.40 = 490,295.20/x
  3. Step 3: Cross multiply
    530,845.60x = 796,268.40 × 490,295.20
  4. Step 4: Simplify right side
    530,845.60x = 390,406,574,431.68
  5. Step 5: Solve for x
    x = 390,406,574,431.68/530,845.60
  6. Step 6: Final answer
    x = 735,442.80

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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.