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Finding the Fourth Proportional to 507,485.73, 700,221.32 and 300,819.28

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Solution

The fourth proportional to 507,485.73, 700,221.32 and 300,819.28 is: 415,066.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,485.73 : 700,221.32 = 300,819.28 : x
  2. Step 2: Convert to fraction form
    507,485.73/700,221.32 = 300,819.28/x
  3. Step 3: Cross multiply
    507,485.73x = 700,221.32 × 300,819.28
  4. Step 4: Simplify right side
    507,485.73x = 210,640,071,701.57
  5. Step 5: Solve for x
    x = 210,640,071,701.57/507,485.73
  6. Step 6: Final answer
    x = 415,066.00

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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.