Home / 1,008,214-1,391,339.64-555,495.28

Finding the Fourth Proportional to 1,008,214, 1,391,339.64 and 555,495.28

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Solution

The fourth proportional to 1,008,214, 1,391,339.64 and 555,495.28 is: 766,585.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,214 : 1,391,339.64 = 555,495.28 : x
  2. Step 2: Convert to fraction form
    1,008,214/1,391,339.64 = 555,495.28/x
  3. Step 3: Cross multiply
    1,008,214x = 1,391,339.64 × 555,495.28
  4. Step 4: Simplify right side
    1,008,214x = 772,882,602,896.90
  5. Step 5: Solve for x
    x = 772,882,602,896.90/1,008,214
  6. Step 6: Final answer
    x = 766,585.87

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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.