Home / 1,087,354.40-1,629,427.80-788,464.40

Finding the Fourth Proportional to 1,087,354.40, 1,629,427.80 and 788,464.40

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Solution

The fourth proportional to 1,087,354.40, 1,629,427.80 and 788,464.40 is: 1,181,533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,354.40 : 1,629,427.80 = 788,464.40 : x
  2. Step 2: Convert to fraction form
    1,087,354.40/1,629,427.80 = 788,464.40/x
  3. Step 3: Cross multiply
    1,087,354.40x = 1,629,427.80 × 788,464.40
  4. Step 4: Simplify right side
    1,087,354.40x = 1,284,745,812,670.32
  5. Step 5: Solve for x
    x = 1,284,745,812,670.32/1,087,354.40
  6. Step 6: Final answer
    x = 1,181,533.65

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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.