Home / 921,880-1,382,962.47-314,526.12

Finding the Fourth Proportional to 921,880, 1,382,962.47 and 314,526.12

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Solution

The fourth proportional to 921,880, 1,382,962.47 and 314,526.12 is: 471,837.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,880 : 1,382,962.47 = 314,526.12 : x
  2. Step 2: Convert to fraction form
    921,880/1,382,962.47 = 314,526.12/x
  3. Step 3: Cross multiply
    921,880x = 1,382,962.47 × 314,526.12
  4. Step 4: Simplify right side
    921,880x = 434,977,819,794.72
  5. Step 5: Solve for x
    x = 434,977,819,794.72/921,880
  6. Step 6: Final answer
    x = 471,837.79

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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.