Home / 877,255.30-1,315,686.12-403,485.49

Finding the Fourth Proportional to 877,255.30, 1,315,686.12 and 403,485.49

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Solution

The fourth proportional to 877,255.30, 1,315,686.12 and 403,485.49 is: 605,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,255.30 : 1,315,686.12 = 403,485.49 : x
  2. Step 2: Convert to fraction form
    877,255.30/1,315,686.12 = 403,485.49/x
  3. Step 3: Cross multiply
    877,255.30x = 1,315,686.12 × 403,485.49
  4. Step 4: Simplify right side
    877,255.30x = 530,860,258,814.40
  5. Step 5: Solve for x
    x = 530,860,258,814.40/877,255.30
  6. Step 6: Final answer
    x = 605,137.70

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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.