Home / 885,830.21-1,328,417.27-286,635.95

Finding the Fourth Proportional to 885,830.21, 1,328,417.27 and 286,635.95

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Solution

The fourth proportional to 885,830.21, 1,328,417.27 and 286,635.95 is: 429,847.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,830.21 : 1,328,417.27 = 286,635.95 : x
  2. Step 2: Convert to fraction form
    885,830.21/1,328,417.27 = 286,635.95/x
  3. Step 3: Cross multiply
    885,830.21x = 1,328,417.27 × 286,635.95
  4. Step 4: Simplify right side
    885,830.21x = 380,772,144,749.68
  5. Step 5: Solve for x
    x = 380,772,144,749.68/885,830.21
  6. Step 6: Final answer
    x = 429,847.77

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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.