Home / 1,186,921.81-1,780,384.76-288,364.15

Finding the Fourth Proportional to 1,186,921.81, 1,780,384.76 and 288,364.15

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Solution

The fourth proportional to 1,186,921.81, 1,780,384.76 and 288,364.15 is: 432,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,921.81 : 1,780,384.76 = 288,364.15 : x
  2. Step 2: Convert to fraction form
    1,186,921.81/1,780,384.76 = 288,364.15/x
  3. Step 3: Cross multiply
    1,186,921.81x = 1,780,384.76 × 288,364.15
  4. Step 4: Simplify right side
    1,186,921.81x = 513,399,139,855.38
  5. Step 5: Solve for x
    x = 513,399,139,855.38/1,186,921.81
  6. Step 6: Final answer
    x = 432,546.73

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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.