Home / 931,147.02-1,396,499.10-257,213.40

Finding the Fourth Proportional to 931,147.02, 1,396,499.10 and 257,213.40

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Solution

The fourth proportional to 931,147.02, 1,396,499.10 and 257,213.40 is: 385,758.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,147.02 : 1,396,499.10 = 257,213.40 : x
  2. Step 2: Convert to fraction form
    931,147.02/1,396,499.10 = 257,213.40/x
  3. Step 3: Cross multiply
    931,147.02x = 1,396,499.10 × 257,213.40
  4. Step 4: Simplify right side
    931,147.02x = 359,198,281,607.94
  5. Step 5: Solve for x
    x = 359,198,281,607.94/931,147.02
  6. Step 6: Final answer
    x = 385,758.93

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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.