Home / 947,268.71-1,421,914.57-407,792.00

Finding the Fourth Proportional to 947,268.71, 1,421,914.57 and 407,792.00

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Solution

The fourth proportional to 947,268.71, 1,421,914.57 and 407,792.00 is: 612,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,268.71 : 1,421,914.57 = 407,792.00 : x
  2. Step 2: Convert to fraction form
    947,268.71/1,421,914.57 = 407,792.00/x
  3. Step 3: Cross multiply
    947,268.71x = 1,421,914.57 × 407,792.00
  4. Step 4: Simplify right side
    947,268.71x = 579,845,388,864.75
  5. Step 5: Solve for x
    x = 579,845,388,864.75/947,268.71
  6. Step 6: Final answer
    x = 612,123.45

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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.