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Finding the Fourth Proportional to 370,784.61, 555,995.48 and 258,518.61

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Solution

The fourth proportional to 370,784.61, 555,995.48 and 258,518.61 is: 387,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,784.61 : 555,995.48 = 258,518.61 : x
  2. Step 2: Convert to fraction form
    370,784.61/555,995.48 = 258,518.61/x
  3. Step 3: Cross multiply
    370,784.61x = 555,995.48 × 258,518.61
  4. Step 4: Simplify right side
    370,784.61x = 143,735,177,363.29
  5. Step 5: Solve for x
    x = 143,735,177,363.29/370,784.61
  6. Step 6: Final answer
    x = 387,651.41

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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.