Home / 1,128,474.43-1,557,294.73-645,050.05

Finding the Fourth Proportional to 1,128,474.43, 1,557,294.73 and 645,050.05

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Solution

The fourth proportional to 1,128,474.43, 1,557,294.73 and 645,050.05 is: 890,169.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,474.43 : 1,557,294.73 = 645,050.05 : x
  2. Step 2: Convert to fraction form
    1,128,474.43/1,557,294.73 = 645,050.05/x
  3. Step 3: Cross multiply
    1,128,474.43x = 1,557,294.73 × 645,050.05
  4. Step 4: Simplify right side
    1,128,474.43x = 1,004,533,037,945.37
  5. Step 5: Solve for x
    x = 1,004,533,037,945.37/1,128,474.43
  6. Step 6: Final answer
    x = 890,169.08

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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.