Home / 1,097,012.76-1,513,799.46-638,199.60

Finding the Fourth Proportional to 1,097,012.76, 1,513,799.46 and 638,199.60

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Solution

The fourth proportional to 1,097,012.76, 1,513,799.46 and 638,199.60 is: 880,669.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,012.76 : 1,513,799.46 = 638,199.60 : x
  2. Step 2: Convert to fraction form
    1,097,012.76/1,513,799.46 = 638,199.60/x
  3. Step 3: Cross multiply
    1,097,012.76x = 1,513,799.46 × 638,199.60
  4. Step 4: Simplify right side
    1,097,012.76x = 966,106,209,852.22
  5. Step 5: Solve for x
    x = 966,106,209,852.22/1,097,012.76
  6. Step 6: Final answer
    x = 880,669.98

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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.