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Finding the Fourth Proportional to 387,507.60, 580,224.60 and 246,502.80

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Solution

The fourth proportional to 387,507.60, 580,224.60 and 246,502.80 is: 369,094.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,507.60 : 580,224.60 = 246,502.80 : x
  2. Step 2: Convert to fraction form
    387,507.60/580,224.60 = 246,502.80/x
  3. Step 3: Cross multiply
    387,507.60x = 580,224.60 × 246,502.80
  4. Step 4: Simplify right side
    387,507.60x = 143,026,988,528.88
  5. Step 5: Solve for x
    x = 143,026,988,528.88/387,507.60
  6. Step 6: Final answer
    x = 369,094.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.