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Finding the Fourth Proportional to 576,408.40, 864,612.60 and 202,431.40

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Solution

The fourth proportional to 576,408.40, 864,612.60 and 202,431.40 is: 303,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,408.40 : 864,612.60 = 202,431.40 : x
  2. Step 2: Convert to fraction form
    576,408.40/864,612.60 = 202,431.40/x
  3. Step 3: Cross multiply
    576,408.40x = 864,612.60 × 202,431.40
  4. Step 4: Simplify right side
    576,408.40x = 175,024,739,075.64
  5. Step 5: Solve for x
    x = 175,024,739,075.64/576,408.40
  6. Step 6: Final answer
    x = 303,647.10

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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.