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Finding the Fourth Proportional to 450,023.20, 675,207.60 and 442,938.40

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Solution

The fourth proportional to 450,023.20, 675,207.60 and 442,938.40 is: 664,577.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,023.20 : 675,207.60 = 442,938.40 : x
  2. Step 2: Convert to fraction form
    450,023.20/675,207.60 = 442,938.40/x
  3. Step 3: Cross multiply
    450,023.20x = 675,207.60 × 442,938.40
  4. Step 4: Simplify right side
    450,023.20x = 299,075,374,011.84
  5. Step 5: Solve for x
    x = 299,075,374,011.84/450,023.20
  6. Step 6: Final answer
    x = 664,577.68

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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.