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Finding the Fourth Proportional to 713,376.60, 984,448.53 and 391,089.35

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Solution

The fourth proportional to 713,376.60, 984,448.53 and 391,089.35 is: 539,697.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,376.60 : 984,448.53 = 391,089.35 : x
  2. Step 2: Convert to fraction form
    713,376.60/984,448.53 = 391,089.35/x
  3. Step 3: Cross multiply
    713,376.60x = 984,448.53 × 391,089.35
  4. Step 4: Simplify right side
    713,376.60x = 385,007,330,783.91
  5. Step 5: Solve for x
    x = 385,007,330,783.91/713,376.60
  6. Step 6: Final answer
    x = 539,697.17

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