Home / 1,008,045.40-1,391,087.10-555,352.60

Finding the Fourth Proportional to 1,008,045.40, 1,391,087.10 and 555,352.60

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Solution

The fourth proportional to 1,008,045.40, 1,391,087.10 and 555,352.60 is: 766,378.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,045.40 : 1,391,087.10 = 555,352.60 : x
  2. Step 2: Convert to fraction form
    1,008,045.40/1,391,087.10 = 555,352.60/x
  3. Step 3: Cross multiply
    1,008,045.40x = 1,391,087.10 × 555,352.60
  4. Step 4: Simplify right side
    1,008,045.40x = 772,543,837,811.46
  5. Step 5: Solve for x
    x = 772,543,837,811.46/1,008,045.40
  6. Step 6: Final answer
    x = 766,378.02

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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.