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Finding the Fourth Proportional to 1,418,907.04, 1,958,133 and 774,368.72

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Solution

The fourth proportional to 1,418,907.04, 1,958,133 and 774,368.72 is: 1,068,651.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,907.04 : 1,958,133 = 774,368.72 : x
  2. Step 2: Convert to fraction form
    1,418,907.04/1,958,133 = 774,368.72/x
  3. Step 3: Cross multiply
    1,418,907.04x = 1,958,133 × 774,368.72
  4. Step 4: Simplify right side
    1,418,907.04x = 1,516,316,944,799.76
  5. Step 5: Solve for x
    x = 1,516,316,944,799.76/1,418,907.04
  6. Step 6: Final answer
    x = 1,068,651.36

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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.