Home / 714,450.56-1,071,839.36-309,710.40

Finding the Fourth Proportional to 714,450.56, 1,071,839.36 and 309,710.40

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Solution

The fourth proportional to 714,450.56, 1,071,839.36 and 309,710.40 is: 464,636.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,450.56 : 1,071,839.36 = 309,710.40 : x
  2. Step 2: Convert to fraction form
    714,450.56/1,071,839.36 = 309,710.40/x
  3. Step 3: Cross multiply
    714,450.56x = 1,071,839.36 × 309,710.40
  4. Step 4: Simplify right side
    714,450.56x = 331,959,796,921.34
  5. Step 5: Solve for x
    x = 331,959,796,921.34/714,450.56
  6. Step 6: Final answer
    x = 464,636.49

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1.5x scale

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.