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Finding the Fourth Proportional to 1,318,004.03, 1,819,232.23 and 766,849.40

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Solution

The fourth proportional to 1,318,004.03, 1,819,232.23 and 766,849.40 is: 1,058,477.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,004.03 : 1,819,232.23 = 766,849.40 : x
  2. Step 2: Convert to fraction form
    1,318,004.03/1,819,232.23 = 766,849.40/x
  3. Step 3: Cross multiply
    1,318,004.03x = 1,819,232.23 × 766,849.40
  4. Step 4: Simplify right side
    1,318,004.03x = 1,395,077,144,036.16
  5. Step 5: Solve for x
    x = 1,395,077,144,036.16/1,318,004.03
  6. Step 6: Final answer
    x = 1,058,477.15

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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.