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Finding the Fourth Proportional to 549,101.90, 823,652.85 and 424,532.30

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Solution

The fourth proportional to 549,101.90, 823,652.85 and 424,532.30 is: 636,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,101.90 : 823,652.85 = 424,532.30 : x
  2. Step 2: Convert to fraction form
    549,101.90/823,652.85 = 424,532.30/x
  3. Step 3: Cross multiply
    549,101.90x = 823,652.85 × 424,532.30
  4. Step 4: Simplify right side
    549,101.90x = 349,667,238,812.06
  5. Step 5: Solve for x
    x = 349,667,238,812.06/549,101.90
  6. Step 6: Final answer
    x = 636,798.45

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Double scale
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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.