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Finding the Fourth Proportional to 450,379.84, 621,627.96 and 297,448.24

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Solution

The fourth proportional to 450,379.84, 621,627.96 and 297,448.24 is: 410,547.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,379.84 : 621,627.96 = 297,448.24 : x
  2. Step 2: Convert to fraction form
    450,379.84/621,627.96 = 297,448.24/x
  3. Step 3: Cross multiply
    450,379.84x = 621,627.96 × 297,448.24
  4. Step 4: Simplify right side
    450,379.84x = 184,902,142,636.79
  5. Step 5: Solve for x
    x = 184,902,142,636.79/450,379.84
  6. Step 6: Final answer
    x = 410,547.11

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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.