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Finding the Fourth Proportional to 660,579.66, 911,569.44 and 374,101.80

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Solution

The fourth proportional to 660,579.66, 911,569.44 and 374,101.80 is: 516,243.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,579.66 : 911,569.44 = 374,101.80 : x
  2. Step 2: Convert to fraction form
    660,579.66/911,569.44 = 374,101.80/x
  3. Step 3: Cross multiply
    660,579.66x = 911,569.44 × 374,101.80
  4. Step 4: Simplify right side
    660,579.66x = 341,019,768,328.99
  5. Step 5: Solve for x
    x = 341,019,768,328.99/660,579.66
  6. Step 6: Final answer
    x = 516,243.22

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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.