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Finding the Fourth Proportional to 384,027.60, 576,041.40 and 338,408.40

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Solution

The fourth proportional to 384,027.60, 576,041.40 and 338,408.40 is: 507,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,027.60 : 576,041.40 = 338,408.40 : x
  2. Step 2: Convert to fraction form
    384,027.60/576,041.40 = 338,408.40/x
  3. Step 3: Cross multiply
    384,027.60x = 576,041.40 × 338,408.40
  4. Step 4: Simplify right side
    384,027.60x = 194,937,248,507.76
  5. Step 5: Solve for x
    x = 194,937,248,507.76/384,027.60
  6. Step 6: Final answer
    x = 507,612.60

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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.