Home / 1,320,925.50-1,822,899.87-717,313.50

Finding the Fourth Proportional to 1,320,925.50, 1,822,899.87 and 717,313.50

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Solution

The fourth proportional to 1,320,925.50, 1,822,899.87 and 717,313.50 is: 989,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,925.50 : 1,822,899.87 = 717,313.50 : x
  2. Step 2: Convert to fraction form
    1,320,925.50/1,822,899.87 = 717,313.50/x
  3. Step 3: Cross multiply
    1,320,925.50x = 1,822,899.87 × 717,313.50
  4. Step 4: Simplify right side
    1,320,925.50x = 1,307,590,685,899.25
  5. Step 5: Solve for x
    x = 1,307,590,685,899.25/1,320,925.50
  6. Step 6: Final answer
    x = 989,904.95

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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.