Home / 1,000,017.88-1,378,587.54-713,040.28

Finding the Fourth Proportional to 1,000,017.88, 1,378,587.54 and 713,040.28

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Solution

The fourth proportional to 1,000,017.88, 1,378,587.54 and 713,040.28 is: 982,970.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,017.88 : 1,378,587.54 = 713,040.28 : x
  2. Step 2: Convert to fraction form
    1,000,017.88/1,378,587.54 = 713,040.28/x
  3. Step 3: Cross multiply
    1,000,017.88x = 1,378,587.54 × 713,040.28
  4. Step 4: Simplify right side
    1,000,017.88x = 982,988,445,526.11
  5. Step 5: Solve for x
    x = 982,988,445,526.11/1,000,017.88
  6. Step 6: Final answer
    x = 982,970.87

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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.