Home / 870,389.42-1,304,039.56-363,833.76

Finding the Fourth Proportional to 870,389.42, 1,304,039.56 and 363,833.76

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Solution

The fourth proportional to 870,389.42, 1,304,039.56 and 363,833.76 is: 545,104.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,389.42 : 1,304,039.56 = 363,833.76 : x
  2. Step 2: Convert to fraction form
    870,389.42/1,304,039.56 = 363,833.76/x
  3. Step 3: Cross multiply
    870,389.42x = 1,304,039.56 × 363,833.76
  4. Step 4: Simplify right side
    870,389.42x = 474,453,616,303.55
  5. Step 5: Solve for x
    x = 474,453,616,303.55/870,389.42
  6. Step 6: Final answer
    x = 545,104.99

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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.