Home / 1,319,628.40-1,821,108.36-716,016.40

Finding the Fourth Proportional to 1,319,628.40, 1,821,108.36 and 716,016.40

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Solution

The fourth proportional to 1,319,628.40, 1,821,108.36 and 716,016.40 is: 988,114.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,628.40 : 1,821,108.36 = 716,016.40 : x
  2. Step 2: Convert to fraction form
    1,319,628.40/1,821,108.36 = 716,016.40/x
  3. Step 3: Cross multiply
    1,319,628.40x = 1,821,108.36 × 716,016.40
  4. Step 4: Simplify right side
    1,319,628.40x = 1,303,943,451,937.10
  5. Step 5: Solve for x
    x = 1,303,943,451,937.10/1,319,628.40
  6. Step 6: Final answer
    x = 988,114.12

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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.