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Finding the Fourth Proportional to 549,986.20, 824,323.20 and 493,561.60

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Solution

The fourth proportional to 549,986.20, 824,323.20 and 493,561.60 is: 739,753.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,986.20 : 824,323.20 = 493,561.60 : x
  2. Step 2: Convert to fraction form
    549,986.20/824,323.20 = 493,561.60/x
  3. Step 3: Cross multiply
    549,986.20x = 824,323.20 × 493,561.60
  4. Step 4: Simplify right side
    549,986.20x = 406,854,277,509.12
  5. Step 5: Solve for x
    x = 406,854,277,509.12/549,986.20
  6. Step 6: Final answer
    x = 739,753.61

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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.