Home / 1,189,454.03-1,641,448.35-645,590.01

Finding the Fourth Proportional to 1,189,454.03, 1,641,448.35 and 645,590.01

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Solution

The fourth proportional to 1,189,454.03, 1,641,448.35 and 645,590.01 is: 890,915.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,454.03 : 1,641,448.35 = 645,590.01 : x
  2. Step 2: Convert to fraction form
    1,189,454.03/1,641,448.35 = 645,590.01/x
  3. Step 3: Cross multiply
    1,189,454.03x = 1,641,448.35 × 645,590.01
  4. Step 4: Simplify right side
    1,189,454.03x = 1,059,702,656,690.98
  5. Step 5: Solve for x
    x = 1,059,702,656,690.98/1,189,454.03
  6. Step 6: Final answer
    x = 890,915.19

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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.