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Finding the Fourth Proportional to 507,279.60, 700,045.56 and 280,924.92

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Solution

The fourth proportional to 507,279.60, 700,045.56 and 280,924.92 is: 387,676.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,279.60 : 700,045.56 = 280,924.92 : x
  2. Step 2: Convert to fraction form
    507,279.60/700,045.56 = 280,924.92/x
  3. Step 3: Cross multiply
    507,279.60x = 700,045.56 × 280,924.92
  4. Step 4: Simplify right side
    507,279.60x = 196,660,242,939.36
  5. Step 5: Solve for x
    x = 196,660,242,939.36/507,279.60
  6. Step 6: Final answer
    x = 387,676.23

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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.