Home / 842,722.32-1,264,582.40-310,617.12

Finding the Fourth Proportional to 842,722.32, 1,264,582.40 and 310,617.12

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Solution

The fourth proportional to 842,722.32, 1,264,582.40 and 310,617.12 is: 466,109.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,722.32 : 1,264,582.40 = 310,617.12 : x
  2. Step 2: Convert to fraction form
    842,722.32/1,264,582.40 = 310,617.12/x
  3. Step 3: Cross multiply
    842,722.32x = 1,264,582.40 × 310,617.12
  4. Step 4: Simplify right side
    842,722.32x = 392,800,943,090.69
  5. Step 5: Solve for x
    x = 392,800,943,090.69/842,722.32
  6. Step 6: Final answer
    x = 466,109.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.