Home / 1,396,385.57-2,094,421.51-385,651.22

Finding the Fourth Proportional to 1,396,385.57, 2,094,421.51 and 385,651.22

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Solution

The fourth proportional to 1,396,385.57, 2,094,421.51 and 385,651.22 is: 578,433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,385.57 : 2,094,421.51 = 385,651.22 : x
  2. Step 2: Convert to fraction form
    1,396,385.57/2,094,421.51 = 385,651.22/x
  3. Step 3: Cross multiply
    1,396,385.57x = 2,094,421.51 × 385,651.22
  4. Step 4: Simplify right side
    1,396,385.57x = 807,716,201,707.53
  5. Step 5: Solve for x
    x = 807,716,201,707.53/1,396,385.57
  6. Step 6: Final answer
    x = 578,433.51

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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.