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Finding the Fourth Proportional to 713,922.42, 1,071,210.42 and 309,238.32

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Solution

The fourth proportional to 713,922.42, 1,071,210.42 and 309,238.32 is: 463,999.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,922.42 : 1,071,210.42 = 309,238.32 : x
  2. Step 2: Convert to fraction form
    713,922.42/1,071,210.42 = 309,238.32/x
  3. Step 3: Cross multiply
    713,922.42x = 1,071,210.42 × 309,238.32
  4. Step 4: Simplify right side
    713,922.42x = 331,259,310,647.29
  5. Step 5: Solve for x
    x = 331,259,310,647.29/713,922.42
  6. Step 6: Final answer
    x = 463,999.03

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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.