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Finding the Fourth Proportional to 549,643.70, 824,465.55 and 456,331.70

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Solution

The fourth proportional to 549,643.70, 824,465.55 and 456,331.70 is: 684,497.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,643.70 : 824,465.55 = 456,331.70 : x
  2. Step 2: Convert to fraction form
    549,643.70/824,465.55 = 456,331.70/x
  3. Step 3: Cross multiply
    549,643.70x = 824,465.55 × 456,331.70
  4. Step 4: Simplify right side
    549,643.70x = 376,229,766,022.94
  5. Step 5: Solve for x
    x = 376,229,766,022.94/549,643.70
  6. Step 6: Final answer
    x = 684,497.55

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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.