Home / 1,144,313.60-1,716,470.40-640,428.80

Finding the Fourth Proportional to 1,144,313.60, 1,716,470.40 and 640,428.80

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Solution

The fourth proportional to 1,144,313.60, 1,716,470.40 and 640,428.80 is: 960,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144,313.60 : 1,716,470.40 = 640,428.80 : x
  2. Step 2: Convert to fraction form
    1,144,313.60/1,716,470.40 = 640,428.80/x
  3. Step 3: Cross multiply
    1,144,313.60x = 1,716,470.40 × 640,428.80
  4. Step 4: Simplify right side
    1,144,313.60x = 1,099,277,078,507.52
  5. Step 5: Solve for x
    x = 1,099,277,078,507.52/1,144,313.60
  6. Step 6: Final answer
    x = 960,643.20

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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.