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Finding the Fourth Proportional to 1,351,429.95, 1,864,973.07 and 739,583.10

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Solution

The fourth proportional to 1,351,429.95, 1,864,973.07 and 739,583.10 is: 1,020,624.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,429.95 : 1,864,973.07 = 739,583.10 : x
  2. Step 2: Convert to fraction form
    1,351,429.95/1,864,973.07 = 739,583.10/x
  3. Step 3: Cross multiply
    1,351,429.95x = 1,864,973.07 × 739,583.10
  4. Step 4: Simplify right side
    1,351,429.95x = 1,379,302,564,527.12
  5. Step 5: Solve for x
    x = 1,379,302,564,527.12/1,351,429.95
  6. Step 6: Final answer
    x = 1,020,624.54

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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.