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Finding the Fourth Proportional to 605,425.60, 908,138.40 and 510,947.20

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Solution

The fourth proportional to 605,425.60, 908,138.40 and 510,947.20 is: 766,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,425.60 : 908,138.40 = 510,947.20 : x
  2. Step 2: Convert to fraction form
    605,425.60/908,138.40 = 510,947.20/x
  3. Step 3: Cross multiply
    605,425.60x = 908,138.40 × 510,947.20
  4. Step 4: Simplify right side
    605,425.60x = 464,010,772,692.48
  5. Step 5: Solve for x
    x = 464,010,772,692.48/605,425.60
  6. Step 6: Final answer
    x = 766,420.80

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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.