Home / 1,319,316.18-1,820,659.83-715,704.18

Finding the Fourth Proportional to 1,319,316.18, 1,820,659.83 and 715,704.18

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Solution

The fourth proportional to 1,319,316.18, 1,820,659.83 and 715,704.18 is: 987,673.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,316.18 : 1,820,659.83 = 715,704.18 : x
  2. Step 2: Convert to fraction form
    1,319,316.18/1,820,659.83 = 715,704.18/x
  3. Step 3: Cross multiply
    1,319,316.18x = 1,820,659.83 × 715,704.18
  4. Step 4: Simplify right side
    1,319,316.18x = 1,303,053,850,689.09
  5. Step 5: Solve for x
    x = 1,303,053,850,689.09/1,319,316.18
  6. Step 6: Final answer
    x = 987,673.67

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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.