Home / 1,145,443.60-1,718,165.40-665,178.40

Finding the Fourth Proportional to 1,145,443.60, 1,718,165.40 and 665,178.40

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Solution

The fourth proportional to 1,145,443.60, 1,718,165.40 and 665,178.40 is: 997,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,443.60 : 1,718,165.40 = 665,178.40 : x
  2. Step 2: Convert to fraction form
    1,145,443.60/1,718,165.40 = 665,178.40/x
  3. Step 3: Cross multiply
    1,145,443.60x = 1,718,165.40 × 665,178.40
  4. Step 4: Simplify right side
    1,145,443.60x = 1,142,886,511,707.36
  5. Step 5: Solve for x
    x = 1,142,886,511,707.36/1,145,443.60
  6. Step 6: Final answer
    x = 997,767.60

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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.