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Finding the Fourth Proportional to 507,917.88, 700,948.74 and 303,929.76

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Solution

The fourth proportional to 507,917.88, 700,948.74 and 303,929.76 is: 419,436.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,917.88 : 700,948.74 = 303,929.76 : x
  2. Step 2: Convert to fraction form
    507,917.88/700,948.74 = 303,929.76/x
  3. Step 3: Cross multiply
    507,917.88x = 700,948.74 × 303,929.76
  4. Step 4: Simplify right side
    507,917.88x = 213,039,182,320.50
  5. Step 5: Solve for x
    x = 213,039,182,320.50/507,917.88
  6. Step 6: Final answer
    x = 419,436.27

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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.