Home / 1,285,210.40-1,927,232.40-486,226.40

Finding the Fourth Proportional to 1,285,210.40, 1,927,232.40 and 486,226.40

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Solution

The fourth proportional to 1,285,210.40, 1,927,232.40 and 486,226.40 is: 729,118.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,210.40 : 1,927,232.40 = 486,226.40 : x
  2. Step 2: Convert to fraction form
    1,285,210.40/1,927,232.40 = 486,226.40/x
  3. Step 3: Cross multiply
    1,285,210.40x = 1,927,232.40 × 486,226.40
  4. Step 4: Simplify right side
    1,285,210.40x = 937,071,271,815.36
  5. Step 5: Solve for x
    x = 937,071,271,815.36/1,285,210.40
  6. Step 6: Final answer
    x = 729,118.96

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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.