Home / 1,918,313.40-2,879,802.90-971,196.60

Finding the Fourth Proportional to 1,918,313.40, 2,879,802.90 and 971,196.60

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Solution

The fourth proportional to 1,918,313.40, 2,879,802.90 and 971,196.60 is: 1,457,975.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,313.40 : 2,879,802.90 = 971,196.60 : x
  2. Step 2: Convert to fraction form
    1,918,313.40/2,879,802.90 = 971,196.60/x
  3. Step 3: Cross multiply
    1,918,313.40x = 2,879,802.90 × 971,196.60
  4. Step 4: Simplify right side
    1,918,313.40x = 2,796,854,785,150.14
  5. Step 5: Solve for x
    x = 2,796,854,785,150.14/1,918,313.40
  6. Step 6: Final answer
    x = 1,457,975.94

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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.