Home / 744,010.98-1,026,815.31-421,686.42

Finding the Fourth Proportional to 744,010.98, 1,026,815.31 and 421,686.42

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Solution

The fourth proportional to 744,010.98, 1,026,815.31 and 421,686.42 is: 581,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,010.98 : 1,026,815.31 = 421,686.42 : x
  2. Step 2: Convert to fraction form
    744,010.98/1,026,815.31 = 421,686.42/x
  3. Step 3: Cross multiply
    744,010.98x = 1,026,815.31 × 421,686.42
  4. Step 4: Simplify right side
    744,010.98x = 432,994,072,075.09
  5. Step 5: Solve for x
    x = 432,994,072,075.09/744,010.98
  6. Step 6: Final answer
    x = 581,972.69

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Double scale
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1.5x scale

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.