Home / 678,075.75-935,788.28-376,269.75

Finding the Fourth Proportional to 678,075.75, 935,788.28 and 376,269.75

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Solution

The fourth proportional to 678,075.75, 935,788.28 and 376,269.75 is: 519,276.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,075.75 : 935,788.28 = 376,269.75 : x
  2. Step 2: Convert to fraction form
    678,075.75/935,788.28 = 376,269.75/x
  3. Step 3: Cross multiply
    678,075.75x = 935,788.28 × 376,269.75
  4. Step 4: Simplify right side
    678,075.75x = 352,108,820,287.18
  5. Step 5: Solve for x
    x = 352,108,820,287.18/678,075.75
  6. Step 6: Final answer
    x = 519,276.53

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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.