Home / 1,076,656.71-1,485,819.91-617,855.21

Finding the Fourth Proportional to 1,076,656.71, 1,485,819.91 and 617,855.21

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Solution

The fourth proportional to 1,076,656.71, 1,485,819.91 and 617,855.21 is: 852,659.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,656.71 : 1,485,819.91 = 617,855.21 : x
  2. Step 2: Convert to fraction form
    1,076,656.71/1,485,819.91 = 617,855.21/x
  3. Step 3: Cross multiply
    1,076,656.71x = 1,485,819.91 × 617,855.21
  4. Step 4: Simplify right side
    1,076,656.71x = 918,021,571,430.28
  5. Step 5: Solve for x
    x = 918,021,571,430.28/1,076,656.71
  6. Step 6: Final answer
    x = 852,659.50

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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.