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Finding the Fourth Proportional to 507,609.64, 700,486.14 and 278,164.18

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Solution

The fourth proportional to 507,609.64, 700,486.14 and 278,164.18 is: 383,858.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,609.64 : 700,486.14 = 278,164.18 : x
  2. Step 2: Convert to fraction form
    507,609.64/700,486.14 = 278,164.18/x
  3. Step 3: Cross multiply
    507,609.64x = 700,486.14 × 278,164.18
  4. Step 4: Simplify right side
    507,609.64x = 194,850,152,734.47
  5. Step 5: Solve for x
    x = 194,850,152,734.47/507,609.64
  6. Step 6: Final answer
    x = 383,858.26

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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.