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Finding the Fourth Proportional to 1,130,977, 1,560,751.50 and 647,549.56

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Solution

The fourth proportional to 1,130,977, 1,560,751.50 and 647,549.56 is: 893,620.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,977 : 1,560,751.50 = 647,549.56 : x
  2. Step 2: Convert to fraction form
    1,130,977/1,560,751.50 = 647,549.56/x
  3. Step 3: Cross multiply
    1,130,977x = 1,560,751.50 × 647,549.56
  4. Step 4: Simplify right side
    1,130,977x = 1,010,663,947,094.34
  5. Step 5: Solve for x
    x = 1,010,663,947,094.34/1,130,977
  6. Step 6: Final answer
    x = 893,620.25

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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.