Home / 1,210,068.40-1,668,656.64-802,028.56

Finding the Fourth Proportional to 1,210,068.40, 1,668,656.64 and 802,028.56

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Solution

The fourth proportional to 1,210,068.40, 1,668,656.64 and 802,028.56 is: 1,105,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,068.40 : 1,668,656.64 = 802,028.56 : x
  2. Step 2: Convert to fraction form
    1,210,068.40/1,668,656.64 = 802,028.56/x
  3. Step 3: Cross multiply
    1,210,068.40x = 1,668,656.64 × 802,028.56
  4. Step 4: Simplify right side
    1,210,068.40x = 1,338,310,282,113.64
  5. Step 5: Solve for x
    x = 1,338,310,282,113.64/1,210,068.40
  6. Step 6: Final answer
    x = 1,105,979.04

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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.