Home / 1,318,322.12-1,819,333.51-745,328.12

Finding the Fourth Proportional to 1,318,322.12, 1,819,333.51 and 745,328.12

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Solution

The fourth proportional to 1,318,322.12, 1,819,333.51 and 745,328.12 is: 1,028,580.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,322.12 : 1,819,333.51 = 745,328.12 : x
  2. Step 2: Convert to fraction form
    1,318,322.12/1,819,333.51 = 745,328.12/x
  3. Step 3: Cross multiply
    1,318,322.12x = 1,819,333.51 × 745,328.12
  4. Step 4: Simplify right side
    1,318,322.12x = 1,356,000,413,701.31
  5. Step 5: Solve for x
    x = 1,356,000,413,701.31/1,318,322.12
  6. Step 6: Final answer
    x = 1,028,580.50

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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.