Home / 1,087,246.40-1,631,647.20-456,612.80

Finding the Fourth Proportional to 1,087,246.40, 1,631,647.20 and 456,612.80

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Solution

The fourth proportional to 1,087,246.40, 1,631,647.20 and 456,612.80 is: 685,245.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,246.40 : 1,631,647.20 = 456,612.80 : x
  2. Step 2: Convert to fraction form
    1,087,246.40/1,631,647.20 = 456,612.80/x
  3. Step 3: Cross multiply
    1,087,246.40x = 1,631,647.20 × 456,612.80
  4. Step 4: Simplify right side
    1,087,246.40x = 745,030,996,604.16
  5. Step 5: Solve for x
    x = 745,030,996,604.16/1,087,246.40
  6. Step 6: Final answer
    x = 685,245.77

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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.