Home / 915,741.48-1,373,808.74-308,589.72

Finding the Fourth Proportional to 915,741.48, 1,373,808.74 and 308,589.72

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Solution

The fourth proportional to 915,741.48, 1,373,808.74 and 308,589.72 is: 462,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,741.48 : 1,373,808.74 = 308,589.72 : x
  2. Step 2: Convert to fraction form
    915,741.48/1,373,808.74 = 308,589.72/x
  3. Step 3: Cross multiply
    915,741.48x = 1,373,808.74 × 308,589.72
  4. Step 4: Simplify right side
    915,741.48x = 423,943,254,410.15
  5. Step 5: Solve for x
    x = 423,943,254,410.15/915,741.48
  6. Step 6: Final answer
    x = 462,950.80

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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.