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Finding the Fourth Proportional to 540,570.55, 745,955.30 and 298,838.71

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Solution

The fourth proportional to 540,570.55, 745,955.30 and 298,838.71 is: 412,379.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,570.55 : 745,955.30 = 298,838.71 : x
  2. Step 2: Convert to fraction form
    540,570.55/745,955.30 = 298,838.71/x
  3. Step 3: Cross multiply
    540,570.55x = 745,955.30 × 298,838.71
  4. Step 4: Simplify right side
    540,570.55x = 222,920,315,652.40
  5. Step 5: Solve for x
    x = 222,920,315,652.40/540,570.55
  6. Step 6: Final answer
    x = 412,379.69

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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.