Home / 1,428,567.22-1,971,378.29-783,970.84

Finding the Fourth Proportional to 1,428,567.22, 1,971,378.29 and 783,970.84

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Solution

The fourth proportional to 1,428,567.22, 1,971,378.29 and 783,970.84 is: 1,081,855.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,567.22 : 1,971,378.29 = 783,970.84 : x
  2. Step 2: Convert to fraction form
    1,428,567.22/1,971,378.29 = 783,970.84/x
  3. Step 3: Cross multiply
    1,428,567.22x = 1,971,378.29 × 783,970.84
  4. Step 4: Simplify right side
    1,428,567.22x = 1,545,503,091,000.55
  5. Step 5: Solve for x
    x = 1,545,503,091,000.55/1,428,567.22
  6. Step 6: Final answer
    x = 1,081,855.35

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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.