Home / 1,425,829.14-1,967,643.09-781,289.46

Finding the Fourth Proportional to 1,425,829.14, 1,967,643.09 and 781,289.46

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Solution

The fourth proportional to 1,425,829.14, 1,967,643.09 and 781,289.46 is: 1,078,178.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,829.14 : 1,967,643.09 = 781,289.46 : x
  2. Step 2: Convert to fraction form
    1,425,829.14/1,967,643.09 = 781,289.46/x
  3. Step 3: Cross multiply
    1,425,829.14x = 1,967,643.09 × 781,289.46
  4. Step 4: Simplify right side
    1,425,829.14x = 1,537,298,807,258.83
  5. Step 5: Solve for x
    x = 1,537,298,807,258.83/1,425,829.14
  6. Step 6: Final answer
    x = 1,078,178.84

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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.