Home / 1,087,387.40-1,629,477.30-788,497.40

Finding the Fourth Proportional to 1,087,387.40, 1,629,477.30 and 788,497.40

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Solution

The fourth proportional to 1,087,387.40, 1,629,477.30 and 788,497.40 is: 1,181,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,387.40 : 1,629,477.30 = 788,497.40 : x
  2. Step 2: Convert to fraction form
    1,087,387.40/1,629,477.30 = 788,497.40/x
  3. Step 3: Cross multiply
    1,087,387.40x = 1,629,477.30 × 788,497.40
  4. Step 4: Simplify right side
    1,087,387.40x = 1,284,838,614,409.02
  5. Step 5: Solve for x
    x = 1,284,838,614,409.02/1,087,387.40
  6. Step 6: Final answer
    x = 1,181,583.14

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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.