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Finding the Fourth Proportional to 626,293.92, 864,280.64 and 354,359.52

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Solution

The fourth proportional to 626,293.92, 864,280.64 and 354,359.52 is: 489,013.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,293.92 : 864,280.64 = 354,359.52 : x
  2. Step 2: Convert to fraction form
    626,293.92/864,280.64 = 354,359.52/x
  3. Step 3: Cross multiply
    626,293.92x = 864,280.64 × 354,359.52
  4. Step 4: Simplify right side
    626,293.92x = 306,266,072,735.69
  5. Step 5: Solve for x
    x = 306,266,072,735.69/626,293.92
  6. Step 6: Final answer
    x = 489,013.33

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1.5x scale

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.