Home / 1,087,288.80-1,631,127.60-456,266.40

Finding the Fourth Proportional to 1,087,288.80, 1,631,127.60 and 456,266.40

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Solution

The fourth proportional to 1,087,288.80, 1,631,127.60 and 456,266.40 is: 684,481.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,288.80 : 1,631,127.60 = 456,266.40 : x
  2. Step 2: Convert to fraction form
    1,087,288.80/1,631,127.60 = 456,266.40/x
  3. Step 3: Cross multiply
    1,087,288.80x = 1,631,127.60 × 456,266.40
  4. Step 4: Simplify right side
    1,087,288.80x = 744,228,717,992.64
  5. Step 5: Solve for x
    x = 744,228,717,992.64/1,087,288.80
  6. Step 6: Final answer
    x = 684,481.18

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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.