Home / 900,015.60-1,348,468.20-425,679.60

Finding the Fourth Proportional to 900,015.60, 1,348,468.20 and 425,679.60

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Solution

The fourth proportional to 900,015.60, 1,348,468.20 and 425,679.60 is: 637,783.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,015.60 : 1,348,468.20 = 425,679.60 : x
  2. Step 2: Convert to fraction form
    900,015.60/1,348,468.20 = 425,679.60/x
  3. Step 3: Cross multiply
    900,015.60x = 1,348,468.20 × 425,679.60
  4. Step 4: Simplify right side
    900,015.60x = 574,015,403,988.72
  5. Step 5: Solve for x
    x = 574,015,403,988.72/900,015.60
  6. Step 6: Final answer
    x = 637,783.84

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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.