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Finding the Fourth Proportional to 662,980.80, 994,471.20 and 559,300.80

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Solution

The fourth proportional to 662,980.80, 994,471.20 and 559,300.80 is: 838,951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,980.80 : 994,471.20 = 559,300.80 : x
  2. Step 2: Convert to fraction form
    662,980.80/994,471.20 = 559,300.80/x
  3. Step 3: Cross multiply
    662,980.80x = 994,471.20 × 559,300.80
  4. Step 4: Simplify right side
    662,980.80x = 556,208,537,736.96
  5. Step 5: Solve for x
    x = 556,208,537,736.96/662,980.80
  6. Step 6: Final answer
    x = 838,951.20

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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.