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Finding the Fourth Proportional to 540,189.84, 745,397.16 and 298,457.52

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Solution

The fourth proportional to 540,189.84, 745,397.16 and 298,457.52 is: 411,835.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,189.84 : 745,397.16 = 298,457.52 : x
  2. Step 2: Convert to fraction form
    540,189.84/745,397.16 = 298,457.52/x
  3. Step 3: Cross multiply
    540,189.84x = 745,397.16 × 298,457.52
  4. Step 4: Simplify right side
    540,189.84x = 222,469,387,788.64
  5. Step 5: Solve for x
    x = 222,469,387,788.64/540,189.84
  6. Step 6: Final answer
    x = 411,835.56

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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.