Home / 842,215.20-1,263,322.80-462,989.40

Finding the Fourth Proportional to 842,215.20, 1,263,322.80 and 462,989.40

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Solution

The fourth proportional to 842,215.20, 1,263,322.80 and 462,989.40 is: 694,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,215.20 : 1,263,322.80 = 462,989.40 : x
  2. Step 2: Convert to fraction form
    842,215.20/1,263,322.80 = 462,989.40/x
  3. Step 3: Cross multiply
    842,215.20x = 1,263,322.80 × 462,989.40
  4. Step 4: Simplify right side
    842,215.20x = 584,905,065,178.32
  5. Step 5: Solve for x
    x = 584,905,065,178.32/842,215.20
  6. Step 6: Final answer
    x = 694,484.10

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1.5x scale

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.