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Finding the Fourth Proportional to 649,980.42, 896,969.92 and 363,501.65

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Solution

The fourth proportional to 649,980.42, 896,969.92 and 363,501.65 is: 501,630.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,980.42 : 896,969.92 = 363,501.65 : x
  2. Step 2: Convert to fraction form
    649,980.42/896,969.92 = 363,501.65/x
  3. Step 3: Cross multiply
    649,980.42x = 896,969.92 × 363,501.65
  4. Step 4: Simplify right side
    649,980.42x = 326,050,045,920.37
  5. Step 5: Solve for x
    x = 326,050,045,920.37/649,980.42
  6. Step 6: Final answer
    x = 501,630.57

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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.