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Finding the Fourth Proportional to 1,019,977.40, 1,529,966.10 and 901,879.40

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Solution

The fourth proportional to 1,019,977.40, 1,529,966.10 and 901,879.40 is: 1,352,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,977.40 : 1,529,966.10 = 901,879.40 : x
  2. Step 2: Convert to fraction form
    1,019,977.40/1,529,966.10 = 901,879.40/x
  3. Step 3: Cross multiply
    1,019,977.40x = 1,529,966.10 × 901,879.40
  4. Step 4: Simplify right side
    1,019,977.40x = 1,379,844,908,288.34
  5. Step 5: Solve for x
    x = 1,379,844,908,288.34/1,019,977.40
  6. Step 6: Final answer
    x = 1,352,819.10

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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.