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Finding the Fourth Proportional to 507,454.94, 700,279.32 and 278,010.09

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Solution

The fourth proportional to 507,454.94, 700,279.32 and 278,010.09 is: 383,649.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,454.94 : 700,279.32 = 278,010.09 : x
  2. Step 2: Convert to fraction form
    507,454.94/700,279.32 = 278,010.09/x
  3. Step 3: Cross multiply
    507,454.94x = 700,279.32 × 278,010.09
  4. Step 4: Simplify right side
    507,454.94x = 194,684,717,820.88
  5. Step 5: Solve for x
    x = 194,684,717,820.88/507,454.94
  6. Step 6: Final answer
    x = 383,649.27

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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.