Home / 1,369,275.78-1,889,455.20-757,331.30

Finding the Fourth Proportional to 1,369,275.78, 1,889,455.20 and 757,331.30

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Solution

The fourth proportional to 1,369,275.78, 1,889,455.20 and 757,331.30 is: 1,045,036.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,275.78 : 1,889,455.20 = 757,331.30 : x
  2. Step 2: Convert to fraction form
    1,369,275.78/1,889,455.20 = 757,331.30/x
  3. Step 3: Cross multiply
    1,369,275.78x = 1,889,455.20 × 757,331.30
  4. Step 4: Simplify right side
    1,369,275.78x = 1,430,943,562,907.76
  5. Step 5: Solve for x
    x = 1,430,943,562,907.76/1,369,275.78
  6. Step 6: Final answer
    x = 1,045,036.79

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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.