Home / 839,628.78-1,258,821.09-507,127.02

Finding the Fourth Proportional to 839,628.78, 1,258,821.09 and 507,127.02

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Solution

The fourth proportional to 839,628.78, 1,258,821.09 and 507,127.02 is: 760,314.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,628.78 : 1,258,821.09 = 507,127.02 : x
  2. Step 2: Convert to fraction form
    839,628.78/1,258,821.09 = 507,127.02/x
  3. Step 3: Cross multiply
    839,628.78x = 1,258,821.09 × 507,127.02
  4. Step 4: Simplify right side
    839,628.78x = 638,382,188,084.85
  5. Step 5: Solve for x
    x = 638,382,188,084.85/839,628.78
  6. Step 6: Final answer
    x = 760,314.80

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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.