Home / 778,539.62-1,074,415.93-434,405.61

Finding the Fourth Proportional to 778,539.62, 1,074,415.93 and 434,405.61

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Solution

The fourth proportional to 778,539.62, 1,074,415.93 and 434,405.61 is: 599,497.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,539.62 : 1,074,415.93 = 434,405.61 : x
  2. Step 2: Convert to fraction form
    778,539.62/1,074,415.93 = 434,405.61/x
  3. Step 3: Cross multiply
    778,539.62x = 1,074,415.93 × 434,405.61
  4. Step 4: Simplify right side
    778,539.62x = 466,732,306,379.35
  5. Step 5: Solve for x
    x = 466,732,306,379.35/778,539.62
  6. Step 6: Final answer
    x = 599,497.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.