Home / 778,724.96-1,074,638.43-434,557.31

Finding the Fourth Proportional to 778,724.96, 1,074,638.43 and 434,557.31

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Solution

The fourth proportional to 778,724.96, 1,074,638.43 and 434,557.31 is: 599,687.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,724.96 : 1,074,638.43 = 434,557.31 : x
  2. Step 2: Convert to fraction form
    778,724.96/1,074,638.43 = 434,557.31/x
  3. Step 3: Cross multiply
    778,724.96x = 1,074,638.43 × 434,557.31
  4. Step 4: Simplify right side
    778,724.96x = 466,991,979,990.23
  5. Step 5: Solve for x
    x = 466,991,979,990.23/778,724.96
  6. Step 6: Final answer
    x = 599,687.96

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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.