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Finding the Fourth Proportional to 654,077.80, 981,246.30 and 549,620.20

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Solution

The fourth proportional to 654,077.80, 981,246.30 and 549,620.20 is: 824,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,077.80 : 981,246.30 = 549,620.20 : x
  2. Step 2: Convert to fraction form
    654,077.80/981,246.30 = 549,620.20/x
  3. Step 3: Cross multiply
    654,077.80x = 981,246.30 × 549,620.20
  4. Step 4: Simplify right side
    654,077.80x = 539,312,787,655.26
  5. Step 5: Solve for x
    x = 539,312,787,655.26/654,077.80
  6. Step 6: Final answer
    x = 824,539.20

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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.