Home / 1,426,971.21-1,969,281.77-853,901.07

Finding the Fourth Proportional to 1,426,971.21, 1,969,281.77 and 853,901.07

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Solution

The fourth proportional to 1,426,971.21, 1,969,281.77 and 853,901.07 is: 1,178,420.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,971.21 : 1,969,281.77 = 853,901.07 : x
  2. Step 2: Convert to fraction form
    1,426,971.21/1,969,281.77 = 853,901.07/x
  3. Step 3: Cross multiply
    1,426,971.21x = 1,969,281.77 × 853,901.07
  4. Step 4: Simplify right side
    1,426,971.21x = 1,681,571,806,264.99
  5. Step 5: Solve for x
    x = 1,681,571,806,264.99/1,426,971.21
  6. Step 6: Final answer
    x = 1,178,420.28

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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.