Home / 1,918,804.80-2,874,416.40-972,854.40

Finding the Fourth Proportional to 1,918,804.80, 2,874,416.40 and 972,854.40

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Solution

The fourth proportional to 1,918,804.80, 2,874,416.40 and 972,854.40 is: 1,457,359.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,804.80 : 2,874,416.40 = 972,854.40 : x
  2. Step 2: Convert to fraction form
    1,918,804.80/2,874,416.40 = 972,854.40/x
  3. Step 3: Cross multiply
    1,918,804.80x = 2,874,416.40 × 972,854.40
  4. Step 4: Simplify right side
    1,918,804.80x = 2,796,388,642,172.16
  5. Step 5: Solve for x
    x = 2,796,388,642,172.16/1,918,804.80
  6. Step 6: Final answer
    x = 1,457,359.62

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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.