Home / 1,318,405.69-1,977,797.94-407,659.06

Finding the Fourth Proportional to 1,318,405.69, 1,977,797.94 and 407,659.06

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Solution

The fourth proportional to 1,318,405.69, 1,977,797.94 and 407,659.06 is: 611,547.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,405.69 : 1,977,797.94 = 407,659.06 : x
  2. Step 2: Convert to fraction form
    1,318,405.69/1,977,797.94 = 407,659.06/x
  3. Step 3: Cross multiply
    1,318,405.69x = 1,977,797.94 × 407,659.06
  4. Step 4: Simplify right side
    1,318,405.69x = 806,267,249,090.34
  5. Step 5: Solve for x
    x = 806,267,249,090.34/1,318,405.69
  6. Step 6: Final answer
    x = 611,547.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.