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Finding the Fourth Proportional to 672,010.60, 1,008,015.90 and 605,655.40

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Solution

The fourth proportional to 672,010.60, 1,008,015.90 and 605,655.40 is: 908,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,010.60 : 1,008,015.90 = 605,655.40 : x
  2. Step 2: Convert to fraction form
    672,010.60/1,008,015.90 = 605,655.40/x
  3. Step 3: Cross multiply
    672,010.60x = 1,008,015.90 × 605,655.40
  4. Step 4: Simplify right side
    672,010.60x = 610,510,273,120.86
  5. Step 5: Solve for x
    x = 610,510,273,120.86/672,010.60
  6. Step 6: Final answer
    x = 908,483.10

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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.