Home / 872,478.84-1,308,465.36-339,881.16

Finding the Fourth Proportional to 872,478.84, 1,308,465.36 and 339,881.16

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Solution

The fourth proportional to 872,478.84, 1,308,465.36 and 339,881.16 is: 509,723.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,478.84 : 1,308,465.36 = 339,881.16 : x
  2. Step 2: Convert to fraction form
    872,478.84/1,308,465.36 = 339,881.16/x
  3. Step 3: Cross multiply
    872,478.84x = 1,308,465.36 × 339,881.16
  4. Step 4: Simplify right side
    872,478.84x = 444,722,724,376.62
  5. Step 5: Solve for x
    x = 444,722,724,376.62/872,478.84
  6. Step 6: Final answer
    x = 509,723.22

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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.