Home / 1,918,847.36-2,878,230.64-639,547.36

Finding the Fourth Proportional to 1,918,847.36, 2,878,230.64 and 639,547.36

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Solution

The fourth proportional to 1,918,847.36, 2,878,230.64 and 639,547.36 is: 959,307.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,847.36 : 2,878,230.64 = 639,547.36 : x
  2. Step 2: Convert to fraction form
    1,918,847.36/2,878,230.64 = 639,547.36/x
  3. Step 3: Cross multiply
    1,918,847.36x = 2,878,230.64 × 639,547.36
  4. Step 4: Simplify right side
    1,918,847.36x = 1,840,764,807,283.11
  5. Step 5: Solve for x
    x = 1,840,764,807,283.11/1,918,847.36
  6. Step 6: Final answer
    x = 959,307.57

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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.