Home / 1,294,390.61-1,786,182.19-742,978.92

Finding the Fourth Proportional to 1,294,390.61, 1,786,182.19 and 742,978.92

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Solution

The fourth proportional to 1,294,390.61, 1,786,182.19 and 742,978.92 is: 1,025,266.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,390.61 : 1,786,182.19 = 742,978.92 : x
  2. Step 2: Convert to fraction form
    1,294,390.61/1,786,182.19 = 742,978.92/x
  3. Step 3: Cross multiply
    1,294,390.61x = 1,786,182.19 × 742,978.92
  4. Step 4: Simplify right side
    1,294,390.61x = 1,327,095,710,734.54
  5. Step 5: Solve for x
    x = 1,327,095,710,734.54/1,294,390.61
  6. Step 6: Final answer
    x = 1,025,266.80

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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.