Home / 1,008,045.80-1,391,178.66-555,338.60

Finding the Fourth Proportional to 1,008,045.80, 1,391,178.66 and 555,338.60

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Solution

The fourth proportional to 1,008,045.80, 1,391,178.66 and 555,338.60 is: 766,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,045.80 : 1,391,178.66 = 555,338.60 : x
  2. Step 2: Convert to fraction form
    1,008,045.80/1,391,178.66 = 555,338.60/x
  3. Step 3: Cross multiply
    1,008,045.80x = 1,391,178.66 × 555,338.60
  4. Step 4: Simplify right side
    1,008,045.80x = 772,575,209,394.28
  5. Step 5: Solve for x
    x = 772,575,209,394.28/1,008,045.80
  6. Step 6: Final answer
    x = 766,408.84

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Double scale
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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.