Home / 864,875.70-1,297,527.68-257,661.30

Finding the Fourth Proportional to 864,875.70, 1,297,527.68 and 257,661.30

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Solution

The fourth proportional to 864,875.70, 1,297,527.68 and 257,661.30 is: 386,555.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,875.70 : 1,297,527.68 = 257,661.30 : x
  2. Step 2: Convert to fraction form
    864,875.70/1,297,527.68 = 257,661.30/x
  3. Step 3: Cross multiply
    864,875.70x = 1,297,527.68 × 257,661.30
  4. Step 4: Simplify right side
    864,875.70x = 334,322,668,492.71
  5. Step 5: Solve for x
    x = 334,322,668,492.71/864,875.70
  6. Step 6: Final answer
    x = 386,555.74

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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.