Home / 1,313,256.51-1,969,945.11-402,373.71

Finding the Fourth Proportional to 1,313,256.51, 1,969,945.11 and 402,373.71

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Solution

The fourth proportional to 1,313,256.51, 1,969,945.11 and 402,373.71 is: 603,579.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,256.51 : 1,969,945.11 = 402,373.71 : x
  2. Step 2: Convert to fraction form
    1,313,256.51/1,969,945.11 = 402,373.71/x
  3. Step 3: Cross multiply
    1,313,256.51x = 1,969,945.11 × 402,373.71
  4. Step 4: Simplify right side
    1,313,256.51x = 792,654,122,407.06
  5. Step 5: Solve for x
    x = 792,654,122,407.06/1,313,256.51
  6. Step 6: Final answer
    x = 603,579.05

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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.