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Finding the Fourth Proportional to 648,479.56, 973,312.60 and 328,852.01

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Solution

The fourth proportional to 648,479.56, 973,312.60 and 328,852.01 is: 493,578.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,479.56 : 973,312.60 = 328,852.01 : x
  2. Step 2: Convert to fraction form
    648,479.56/973,312.60 = 328,852.01/x
  3. Step 3: Cross multiply
    648,479.56x = 973,312.60 × 328,852.01
  4. Step 4: Simplify right side
    648,479.56x = 320,075,804,868.33
  5. Step 5: Solve for x
    x = 320,075,804,868.33/648,479.56
  6. Step 6: Final answer
    x = 493,578.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.