Home / 877,078.20-1,314,596.70-403,811.40

Finding the Fourth Proportional to 877,078.20, 1,314,596.70 and 403,811.40

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Solution

The fourth proportional to 877,078.20, 1,314,596.70 and 403,811.40 is: 605,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,078.20 : 1,314,596.70 = 403,811.40 : x
  2. Step 2: Convert to fraction form
    877,078.20/1,314,596.70 = 403,811.40/x
  3. Step 3: Cross multiply
    877,078.20x = 1,314,596.70 × 403,811.40
  4. Step 4: Simplify right side
    877,078.20x = 530,849,133,862.38
  5. Step 5: Solve for x
    x = 530,849,133,862.38/877,078.20
  6. Step 6: Final answer
    x = 605,247.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.