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Finding the Fourth Proportional to 1,296,567.90, 1,789,754.07 and 975,206.02

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Solution

The fourth proportional to 1,296,567.90, 1,789,754.07 and 975,206.02 is: 1,346,153.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,567.90 : 1,789,754.07 = 975,206.02 : x
  2. Step 2: Convert to fraction form
    1,296,567.90/1,789,754.07 = 975,206.02/x
  3. Step 3: Cross multiply
    1,296,567.90x = 1,789,754.07 × 975,206.02
  4. Step 4: Simplify right side
    1,296,567.90x = 1,745,378,943,383.50
  5. Step 5: Solve for x
    x = 1,745,378,943,383.50/1,296,567.90
  6. Step 6: Final answer
    x = 1,346,153.14

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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.