Home / 790,678.83-1,186,280.69-258,217.23

Finding the Fourth Proportional to 790,678.83, 1,186,280.69 and 258,217.23

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Solution

The fourth proportional to 790,678.83, 1,186,280.69 and 258,217.23 is: 387,411.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,678.83 : 1,186,280.69 = 258,217.23 : x
  2. Step 2: Convert to fraction form
    790,678.83/1,186,280.69 = 258,217.23/x
  3. Step 3: Cross multiply
    790,678.83x = 1,186,280.69 × 258,217.23
  4. Step 4: Simplify right side
    790,678.83x = 306,318,118,384.23
  5. Step 5: Solve for x
    x = 306,318,118,384.23/790,678.83
  6. Step 6: Final answer
    x = 387,411.56

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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.