Home / 865,606.85-1,298,436.78-296,980.01

Finding the Fourth Proportional to 865,606.85, 1,298,436.78 and 296,980.01

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Solution

The fourth proportional to 865,606.85, 1,298,436.78 and 296,980.01 is: 445,479.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,606.85 : 1,298,436.78 = 296,980.01 : x
  2. Step 2: Convert to fraction form
    865,606.85/1,298,436.78 = 296,980.01/x
  3. Step 3: Cross multiply
    865,606.85x = 1,298,436.78 × 296,980.01
  4. Step 4: Simplify right side
    865,606.85x = 385,609,767,908.77
  5. Step 5: Solve for x
    x = 385,609,767,908.77/865,606.85
  6. Step 6: Final answer
    x = 445,479.11

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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.