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Finding the Fourth Proportional to 507,453.51, 700,276.68 and 278,015.34

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Solution

The fourth proportional to 507,453.51, 700,276.68 and 278,015.34 is: 383,656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,453.51 : 700,276.68 = 278,015.34 : x
  2. Step 2: Convert to fraction form
    507,453.51/700,276.68 = 278,015.34/x
  3. Step 3: Cross multiply
    507,453.51x = 700,276.68 × 278,015.34
  4. Step 4: Simplify right side
    507,453.51x = 194,687,659,284.27
  5. Step 5: Solve for x
    x = 194,687,659,284.27/507,453.51
  6. Step 6: Final answer
    x = 383,656.15

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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.