Home / 660,579.90-911,569.80-374,102.07

Finding the Fourth Proportional to 660,579.90, 911,569.80 and 374,102.07

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Solution

The fourth proportional to 660,579.90, 911,569.80 and 374,102.07 is: 516,243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,579.90 : 911,569.80 = 374,102.07 : x
  2. Step 2: Convert to fraction form
    660,579.90/911,569.80 = 374,102.07/x
  3. Step 3: Cross multiply
    660,579.90x = 911,569.80 × 374,102.07
  4. Step 4: Simplify right side
    660,579.90x = 341,020,149,129.49
  5. Step 5: Solve for x
    x = 341,020,149,129.49/660,579.90
  6. Step 6: Final answer
    x = 516,243.61

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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.