Home / 1,289,308.40-1,779,464.78-745,774.64

Finding the Fourth Proportional to 1,289,308.40, 1,779,464.78 and 745,774.64

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Solution

The fourth proportional to 1,289,308.40, 1,779,464.78 and 745,774.64 is: 1,029,295.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,308.40 : 1,779,464.78 = 745,774.64 : x
  2. Step 2: Convert to fraction form
    1,289,308.40/1,779,464.78 = 745,774.64/x
  3. Step 3: Cross multiply
    1,289,308.40x = 1,779,464.78 × 745,774.64
  4. Step 4: Simplify right side
    1,289,308.40x = 1,327,079,705,697.18
  5. Step 5: Solve for x
    x = 1,327,079,705,697.18/1,289,308.40
  6. Step 6: Final answer
    x = 1,029,295.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.