Home / 1,426,126.18-1,968,069.60-781,532.50

Finding the Fourth Proportional to 1,426,126.18, 1,968,069.60 and 781,532.50

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Solution

The fourth proportional to 1,426,126.18, 1,968,069.60 and 781,532.50 is: 1,078,523.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,126.18 : 1,968,069.60 = 781,532.50 : x
  2. Step 2: Convert to fraction form
    1,426,126.18/1,968,069.60 = 781,532.50/x
  3. Step 3: Cross multiply
    1,426,126.18x = 1,968,069.60 × 781,532.50
  4. Step 4: Simplify right side
    1,426,126.18x = 1,538,110,354,662
  5. Step 5: Solve for x
    x = 1,538,110,354,662/1,426,126.18
  6. Step 6: Final answer
    x = 1,078,523.33

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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.