Home / 782,363.58-1,079,280.75-510,308.07

Finding the Fourth Proportional to 782,363.58, 1,079,280.75 and 510,308.07

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Solution

The fourth proportional to 782,363.58, 1,079,280.75 and 510,308.07 is: 703,976.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,363.58 : 1,079,280.75 = 510,308.07 : x
  2. Step 2: Convert to fraction form
    782,363.58/1,079,280.75 = 510,308.07/x
  3. Step 3: Cross multiply
    782,363.58x = 1,079,280.75 × 510,308.07
  4. Step 4: Simplify right side
    782,363.58x = 550,765,676,520.65
  5. Step 5: Solve for x
    x = 550,765,676,520.65/782,363.58
  6. Step 6: Final answer
    x = 703,976.63

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1.5x scale

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.