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Finding the Fourth Proportional to 660,044.20, 910,704.86 and 373,564.28

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Solution

The fourth proportional to 660,044.20, 910,704.86 and 373,564.28 is: 515,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,044.20 : 910,704.86 = 373,564.28 : x
  2. Step 2: Convert to fraction form
    660,044.20/910,704.86 = 373,564.28/x
  3. Step 3: Cross multiply
    660,044.20x = 910,704.86 × 373,564.28
  4. Step 4: Simplify right side
    660,044.20x = 340,206,805,318.40
  5. Step 5: Solve for x
    x = 340,206,805,318.40/660,044.20
  6. Step 6: Final answer
    x = 515,430.34

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1.5x scale

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.