Home / 1,189,415.61-1,640,646.97-705,638.25

Finding the Fourth Proportional to 1,189,415.61, 1,640,646.97 and 705,638.25

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Solution

The fourth proportional to 1,189,415.61, 1,640,646.97 and 705,638.25 is: 973,337.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,415.61 : 1,640,646.97 = 705,638.25 : x
  2. Step 2: Convert to fraction form
    1,189,415.61/1,640,646.97 = 705,638.25/x
  3. Step 3: Cross multiply
    1,189,415.61x = 1,640,646.97 × 705,638.25
  4. Step 4: Simplify right side
    1,189,415.61x = 1,157,703,255,014.51
  5. Step 5: Solve for x
    x = 1,157,703,255,014.51/1,189,415.61
  6. Step 6: Final answer
    x = 973,337.87

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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.