Home / 1,008,051.60-1,391,115.24-555,344.40

Finding the Fourth Proportional to 1,008,051.60, 1,391,115.24 and 555,344.40

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Solution

The fourth proportional to 1,008,051.60, 1,391,115.24 and 555,344.40 is: 766,377.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,051.60 : 1,391,115.24 = 555,344.40 : x
  2. Step 2: Convert to fraction form
    1,008,051.60/1,391,115.24 = 555,344.40/x
  3. Step 3: Cross multiply
    1,008,051.60x = 1,391,115.24 × 555,344.40
  4. Step 4: Simplify right side
    1,008,051.60x = 772,548,058,288.66
  5. Step 5: Solve for x
    x = 772,548,058,288.66/1,008,051.60
  6. Step 6: Final answer
    x = 766,377.49

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Double scale
Find fourth proportional to 1,008,052.60, 1,391,116.62 and 555,345.40
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1.5x scale

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.