Home / 1,403,520-1,936,739.88-830,459.76

Finding the Fourth Proportional to 1,403,520, 1,936,739.88 and 830,459.76

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Solution

The fourth proportional to 1,403,520, 1,936,739.88 and 830,459.76 is: 1,145,964.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,520 : 1,936,739.88 = 830,459.76 : x
  2. Step 2: Convert to fraction form
    1,403,520/1,936,739.88 = 830,459.76/x
  3. Step 3: Cross multiply
    1,403,520x = 1,936,739.88 × 830,459.76
  4. Step 4: Simplify right side
    1,403,520x = 1,608,384,535,927.23
  5. Step 5: Solve for x
    x = 1,608,384,535,927.23/1,403,520
  6. Step 6: Final answer
    x = 1,145,964.81

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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.