Home / 1,229,758.41-1,697,060.98-678,459.11

Finding the Fourth Proportional to 1,229,758.41, 1,697,060.98 and 678,459.11

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Solution

The fourth proportional to 1,229,758.41, 1,697,060.98 and 678,459.11 is: 936,270.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,758.41 : 1,697,060.98 = 678,459.11 : x
  2. Step 2: Convert to fraction form
    1,229,758.41/1,697,060.98 = 678,459.11/x
  3. Step 3: Cross multiply
    1,229,758.41x = 1,697,060.98 × 678,459.11
  4. Step 4: Simplify right side
    1,229,758.41x = 1,151,386,484,653.03
  5. Step 5: Solve for x
    x = 1,151,386,484,653.03/1,229,758.41
  6. Step 6: Final answer
    x = 936,270.47

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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.