Home / 935,310.20-1,403,378.40-455,271.80

Finding the Fourth Proportional to 935,310.20, 1,403,378.40 and 455,271.80

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Solution

The fourth proportional to 935,310.20, 1,403,378.40 and 455,271.80 is: 683,108.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,310.20 : 1,403,378.40 = 455,271.80 : x
  2. Step 2: Convert to fraction form
    935,310.20/1,403,378.40 = 455,271.80/x
  3. Step 3: Cross multiply
    935,310.20x = 1,403,378.40 × 455,271.80
  4. Step 4: Simplify right side
    935,310.20x = 638,918,610,249.12
  5. Step 5: Solve for x
    x = 638,918,610,249.12/935,310.20
  6. Step 6: Final answer
    x = 683,108.78

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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.