Home / 1,262,325.20-1,893,497.40-420,875.60

Finding the Fourth Proportional to 1,262,325.20, 1,893,497.40 and 420,875.60

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Solution

The fourth proportional to 1,262,325.20, 1,893,497.40 and 420,875.60 is: 631,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,325.20 : 1,893,497.40 = 420,875.60 : x
  2. Step 2: Convert to fraction form
    1,262,325.20/1,893,497.40 = 420,875.60/x
  3. Step 3: Cross multiply
    1,262,325.20x = 1,893,497.40 × 420,875.60
  4. Step 4: Simplify right side
    1,262,325.20x = 796,926,854,323.44
  5. Step 5: Solve for x
    x = 796,926,854,323.44/1,262,325.20
  6. Step 6: Final answer
    x = 631,316.60

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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.