Home / 1,385,216.40-2,078,105.40-786,464.40

Finding the Fourth Proportional to 1,385,216.40, 2,078,105.40 and 786,464.40

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Solution

The fourth proportional to 1,385,216.40, 2,078,105.40 and 786,464.40 is: 1,179,856.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,216.40 : 2,078,105.40 = 786,464.40 : x
  2. Step 2: Convert to fraction form
    1,385,216.40/2,078,105.40 = 786,464.40/x
  3. Step 3: Cross multiply
    1,385,216.40x = 2,078,105.40 × 786,464.40
  4. Step 4: Simplify right side
    1,385,216.40x = 1,634,355,916,547.76
  5. Step 5: Solve for x
    x = 1,634,355,916,547.76/1,385,216.40
  6. Step 6: Final answer
    x = 1,179,856.03

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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.