Home / 864,778.81-1,297,035.14-288,412.22

Finding the Fourth Proportional to 864,778.81, 1,297,035.14 and 288,412.22

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Solution

The fourth proportional to 864,778.81, 1,297,035.14 and 288,412.22 is: 432,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,778.81 : 1,297,035.14 = 288,412.22 : x
  2. Step 2: Convert to fraction form
    864,778.81/1,297,035.14 = 288,412.22/x
  3. Step 3: Cross multiply
    864,778.81x = 1,297,035.14 × 288,412.22
  4. Step 4: Simplify right side
    864,778.81x = 374,080,784,145.41
  5. Step 5: Solve for x
    x = 374,080,784,145.41/864,778.81
  6. Step 6: Final answer
    x = 432,573.95

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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.