Home / 778,543.76-1,074,388.91-434,359.22

Finding the Fourth Proportional to 778,543.76, 1,074,388.91 and 434,359.22

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Solution

The fourth proportional to 778,543.76, 1,074,388.91 and 434,359.22 is: 599,414.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,543.76 : 1,074,388.91 = 434,359.22 : x
  2. Step 2: Convert to fraction form
    778,543.76/1,074,388.91 = 434,359.22/x
  3. Step 3: Cross multiply
    778,543.76x = 1,074,388.91 × 434,359.22
  4. Step 4: Simplify right side
    778,543.76x = 466,670,721,380.51
  5. Step 5: Solve for x
    x = 466,670,721,380.51/778,543.76
  6. Step 6: Final answer
    x = 599,414.89

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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.