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Finding the Fourth Proportional to 615,068.48, 848,040.41 and 505,790.93

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Solution

The fourth proportional to 615,068.48, 848,040.41 and 505,790.93 is: 697,371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,068.48 : 848,040.41 = 505,790.93 : x
  2. Step 2: Convert to fraction form
    615,068.48/848,040.41 = 505,790.93/x
  3. Step 3: Cross multiply
    615,068.48x = 848,040.41 × 505,790.93
  4. Step 4: Simplify right side
    615,068.48x = 428,931,147,651.48
  5. Step 5: Solve for x
    x = 428,931,147,651.48/615,068.48
  6. Step 6: Final answer
    x = 697,371.37

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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.