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Finding the Fourth Proportional to 540,039.84, 745,256.40 and 298,317.60

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Solution

The fourth proportional to 540,039.84, 745,256.40 and 298,317.60 is: 411,679.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,039.84 : 745,256.40 = 298,317.60 : x
  2. Step 2: Convert to fraction form
    540,039.84/745,256.40 = 298,317.60/x
  3. Step 3: Cross multiply
    540,039.84x = 745,256.40 × 298,317.60
  4. Step 4: Simplify right side
    540,039.84x = 222,323,100,632.64
  5. Step 5: Solve for x
    x = 222,323,100,632.64/540,039.84
  6. Step 6: Final answer
    x = 411,679.07

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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.