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Finding the Fourth Proportional to 540,073.02, 745,298.43 and 298,355.58

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Solution

The fourth proportional to 540,073.02, 745,298.43 and 298,355.58 is: 411,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,073.02 : 745,298.43 = 298,355.58 : x
  2. Step 2: Convert to fraction form
    540,073.02/745,298.43 = 298,355.58/x
  3. Step 3: Cross multiply
    540,073.02x = 745,298.43 × 298,355.58
  4. Step 4: Simplify right side
    540,073.02x = 222,363,945,355.74
  5. Step 5: Solve for x
    x = 222,363,945,355.74/540,073.02
  6. Step 6: Final answer
    x = 411,729.41

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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.