Home / 346,923.06-520,837.80-278,571.12

Finding the Fourth Proportional to 346,923.06, 520,837.80 and 278,571.12

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Solution

The fourth proportional to 346,923.06, 520,837.80 and 278,571.12 is: 418,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,923.06 : 520,837.80 = 278,571.12 : x
  2. Step 2: Convert to fraction form
    346,923.06/520,837.80 = 278,571.12/x
  3. Step 3: Cross multiply
    346,923.06x = 520,837.80 × 278,571.12
  4. Step 4: Simplify right side
    346,923.06x = 145,090,369,284.34
  5. Step 5: Solve for x
    x = 145,090,369,284.34/346,923.06
  6. Step 6: Final answer
    x = 418,220.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.