Home / 842,904.40-1,261,246.20-768,254.80

Finding the Fourth Proportional to 842,904.40, 1,261,246.20 and 768,254.80

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Solution

The fourth proportional to 842,904.40, 1,261,246.20 and 768,254.80 is: 1,149,547.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,904.40 : 1,261,246.20 = 768,254.80 : x
  2. Step 2: Convert to fraction form
    842,904.40/1,261,246.20 = 768,254.80/x
  3. Step 3: Cross multiply
    842,904.40x = 1,261,246.20 × 768,254.80
  4. Step 4: Simplify right side
    842,904.40x = 968,958,447,131.76
  5. Step 5: Solve for x
    x = 968,958,447,131.76/842,904.40
  6. Step 6: Final answer
    x = 1,149,547.26

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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.