Home / 507,929.12-700,904.28-278,449.76

Finding the Fourth Proportional to 507,929.12, 700,904.28 and 278,449.76

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Solution

The fourth proportional to 507,929.12, 700,904.28 and 278,449.76 is: 384,239.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,929.12 : 700,904.28 = 278,449.76 : x
  2. Step 2: Convert to fraction form
    507,929.12/700,904.28 = 278,449.76/x
  3. Step 3: Cross multiply
    507,929.12x = 700,904.28 × 278,449.76
  4. Step 4: Simplify right side
    507,929.12x = 195,166,628,548.97
  5. Step 5: Solve for x
    x = 195,166,628,548.97/507,929.12
  6. Step 6: Final answer
    x = 384,239.89

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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.