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Finding the Fourth Proportional to 603,037.20, 832,021.44 and 388,301.52

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Solution

The fourth proportional to 603,037.20, 832,021.44 and 388,301.52 is: 535,746.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,037.20 : 832,021.44 = 388,301.52 : x
  2. Step 2: Convert to fraction form
    603,037.20/832,021.44 = 388,301.52/x
  3. Step 3: Cross multiply
    603,037.20x = 832,021.44 × 388,301.52
  4. Step 4: Simplify right side
    603,037.20x = 323,075,189,824.59
  5. Step 5: Solve for x
    x = 323,075,189,824.59/603,037.20
  6. Step 6: Final answer
    x = 535,746.70

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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.