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Finding the Fourth Proportional to 550,404.90, 825,607.35 and 400,328.10

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Solution

The fourth proportional to 550,404.90, 825,607.35 and 400,328.10 is: 600,492.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,404.90 : 825,607.35 = 400,328.10 : x
  2. Step 2: Convert to fraction form
    550,404.90/825,607.35 = 400,328.10/x
  3. Step 3: Cross multiply
    550,404.90x = 825,607.35 × 400,328.10
  4. Step 4: Simplify right side
    550,404.90x = 330,513,821,771.54
  5. Step 5: Solve for x
    x = 330,513,821,771.54/550,404.90
  6. Step 6: Final answer
    x = 600,492.15

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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.