Home / 1,643,139.60-2,464,709.40-969,543.60

Finding the Fourth Proportional to 1,643,139.60, 2,464,709.40 and 969,543.60

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Solution

The fourth proportional to 1,643,139.60, 2,464,709.40 and 969,543.60 is: 1,454,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,139.60 : 2,464,709.40 = 969,543.60 : x
  2. Step 2: Convert to fraction form
    1,643,139.60/2,464,709.40 = 969,543.60/x
  3. Step 3: Cross multiply
    1,643,139.60x = 2,464,709.40 × 969,543.60
  4. Step 4: Simplify right side
    1,643,139.60x = 2,389,643,224,629.84
  5. Step 5: Solve for x
    x = 2,389,643,224,629.84/1,643,139.60
  6. Step 6: Final answer
    x = 1,454,315.40

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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.