Home / 820,962.30-1,133,075.34-489,839.52

Finding the Fourth Proportional to 820,962.30, 1,133,075.34 and 489,839.52

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Solution

The fourth proportional to 820,962.30, 1,133,075.34 and 489,839.52 is: 676,066.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,962.30 : 1,133,075.34 = 489,839.52 : x
  2. Step 2: Convert to fraction form
    820,962.30/1,133,075.34 = 489,839.52/x
  3. Step 3: Cross multiply
    820,962.30x = 1,133,075.34 × 489,839.52
  4. Step 4: Simplify right side
    820,962.30x = 555,025,080,669.44
  5. Step 5: Solve for x
    x = 555,025,080,669.44/820,962.30
  6. Step 6: Final answer
    x = 676,066.47

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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.