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Finding the Fourth Proportional to 660,673.68, 911,741.64 and 374,253.24

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Solution

The fourth proportional to 660,673.68, 911,741.64 and 374,253.24 is: 516,476.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,673.68 : 911,741.64 = 374,253.24 : x
  2. Step 2: Convert to fraction form
    660,673.68/911,741.64 = 374,253.24/x
  3. Step 3: Cross multiply
    660,673.68x = 911,741.64 × 374,253.24
  4. Step 4: Simplify right side
    660,673.68x = 341,222,262,812.91
  5. Step 5: Solve for x
    x = 341,222,262,812.91/660,673.68
  6. Step 6: Final answer
    x = 516,476.25

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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.