Home / 1,318,312.55-1,819,320.32-745,318.55

Finding the Fourth Proportional to 1,318,312.55, 1,819,320.32 and 745,318.55

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Solution

The fourth proportional to 1,318,312.55, 1,819,320.32 and 745,318.55 is: 1,028,567.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,312.55 : 1,819,320.32 = 745,318.55 : x
  2. Step 2: Convert to fraction form
    1,318,312.55/1,819,320.32 = 745,318.55/x
  3. Step 3: Cross multiply
    1,318,312.55x = 1,819,320.32 × 745,318.55
  4. Step 4: Simplify right side
    1,318,312.55x = 1,355,973,189,299.53
  5. Step 5: Solve for x
    x = 1,355,973,189,299.53/1,318,312.55
  6. Step 6: Final answer
    x = 1,028,567.31

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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.