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Finding the Fourth Proportional to 493,642.80, 740,464.20 and 490,532.40

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Solution

The fourth proportional to 493,642.80, 740,464.20 and 490,532.40 is: 735,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,642.80 : 740,464.20 = 490,532.40 : x
  2. Step 2: Convert to fraction form
    493,642.80/740,464.20 = 490,532.40/x
  3. Step 3: Cross multiply
    493,642.80x = 740,464.20 × 490,532.40
  4. Step 4: Simplify right side
    493,642.80x = 363,221,681,140.08
  5. Step 5: Solve for x
    x = 363,221,681,140.08/493,642.80
  6. Step 6: Final answer
    x = 735,798.60

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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.