Home / 1,315,366.08-1,815,119.46-742,328.34

Finding the Fourth Proportional to 1,315,366.08, 1,815,119.46 and 742,328.34

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Solution

The fourth proportional to 1,315,366.08, 1,815,119.46 and 742,328.34 is: 1,024,364.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,366.08 : 1,815,119.46 = 742,328.34 : x
  2. Step 2: Convert to fraction form
    1,315,366.08/1,815,119.46 = 742,328.34/x
  3. Step 3: Cross multiply
    1,315,366.08x = 1,815,119.46 × 742,328.34
  4. Step 4: Simplify right side
    1,315,366.08x = 1,347,414,615,643.50
  5. Step 5: Solve for x
    x = 1,347,414,615,643.50/1,315,366.08
  6. Step 6: Final answer
    x = 1,024,364.73

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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.