Home / 1,088,809.60-1,631,464.80-805,374.40

Finding the Fourth Proportional to 1,088,809.60, 1,631,464.80 and 805,374.40

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Solution

The fourth proportional to 1,088,809.60, 1,631,464.80 and 805,374.40 is: 1,206,767.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088,809.60 : 1,631,464.80 = 805,374.40 : x
  2. Step 2: Convert to fraction form
    1,088,809.60/1,631,464.80 = 805,374.40/x
  3. Step 3: Cross multiply
    1,088,809.60x = 1,631,464.80 × 805,374.40
  4. Step 4: Simplify right side
    1,088,809.60x = 1,313,939,984,421.12
  5. Step 5: Solve for x
    x = 1,313,939,984,421.12/1,088,809.60
  6. Step 6: Final answer
    x = 1,206,767.45

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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.