Home / 1,007,883.28-1,390,879.02-555,174.28

Finding the Fourth Proportional to 1,007,883.28, 1,390,879.02 and 555,174.28

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Solution

The fourth proportional to 1,007,883.28, 1,390,879.02 and 555,174.28 is: 766,140.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,883.28 : 1,390,879.02 = 555,174.28 : x
  2. Step 2: Convert to fraction form
    1,007,883.28/1,390,879.02 = 555,174.28/x
  3. Step 3: Cross multiply
    1,007,883.28x = 1,390,879.02 × 555,174.28
  4. Step 4: Simplify right side
    1,007,883.28x = 772,180,258,495.61
  5. Step 5: Solve for x
    x = 772,180,258,495.61/1,007,883.28
  6. Step 6: Final answer
    x = 766,140.56

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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.