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Finding the Fourth Proportional to 713,499.77, 984,755.55 and 427,019.18

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Solution

The fourth proportional to 713,499.77, 984,755.55 and 427,019.18 is: 589,361.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,499.77 : 984,755.55 = 427,019.18 : x
  2. Step 2: Convert to fraction form
    713,499.77/984,755.55 = 427,019.18/x
  3. Step 3: Cross multiply
    713,499.77x = 984,755.55 × 427,019.18
  4. Step 4: Simplify right side
    713,499.77x = 420,509,502,537.67
  5. Step 5: Solve for x
    x = 420,509,502,537.67/713,499.77
  6. Step 6: Final answer
    x = 589,361.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.