Home / 680,424.76-938,968.84-370,314.24

Finding the Fourth Proportional to 680,424.76, 938,968.84 and 370,314.24

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Solution

The fourth proportional to 680,424.76, 938,968.84 and 370,314.24 is: 511,024.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,424.76 : 938,968.84 = 370,314.24 : x
  2. Step 2: Convert to fraction form
    680,424.76/938,968.84 = 370,314.24/x
  3. Step 3: Cross multiply
    680,424.76x = 938,968.84 × 370,314.24
  4. Step 4: Simplify right side
    680,424.76x = 347,713,532,368.28
  5. Step 5: Solve for x
    x = 347,713,532,368.28/680,424.76
  6. Step 6: Final answer
    x = 511,024.22

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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.