Home / 1,072,260.72-1,480,051.94-690,287.50

Finding the Fourth Proportional to 1,072,260.72, 1,480,051.94 and 690,287.50

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Solution

The fourth proportional to 1,072,260.72, 1,480,051.94 and 690,287.50 is: 952,810.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,260.72 : 1,480,051.94 = 690,287.50 : x
  2. Step 2: Convert to fraction form
    1,072,260.72/1,480,051.94 = 690,287.50/x
  3. Step 3: Cross multiply
    1,072,260.72x = 1,480,051.94 × 690,287.50
  4. Step 4: Simplify right side
    1,072,260.72x = 1,021,661,355,258.47
  5. Step 5: Solve for x
    x = 1,021,661,355,258.47/1,072,260.72
  6. Step 6: Final answer
    x = 952,810.57

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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.