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Finding the Fourth Proportional to 626,580.33, 864,532.60 and 354,648.18

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Solution

The fourth proportional to 626,580.33, 864,532.60 and 354,648.18 is: 489,330.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,580.33 : 864,532.60 = 354,648.18 : x
  2. Step 2: Convert to fraction form
    626,580.33/864,532.60 = 354,648.18/x
  3. Step 3: Cross multiply
    626,580.33x = 864,532.60 × 354,648.18
  4. Step 4: Simplify right side
    626,580.33x = 306,604,913,140.67
  5. Step 5: Solve for x
    x = 306,604,913,140.67/626,580.33
  6. Step 6: Final answer
    x = 489,330.57

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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.