Home / 685,499.40-1,027,577.93-286,254.35

Finding the Fourth Proportional to 685,499.40, 1,027,577.93 and 286,254.35

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Solution

The fourth proportional to 685,499.40, 1,027,577.93 and 286,254.35 is: 429,101.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,499.40 : 1,027,577.93 = 286,254.35 : x
  2. Step 2: Convert to fraction form
    685,499.40/1,027,577.93 = 286,254.35/x
  3. Step 3: Cross multiply
    685,499.40x = 1,027,577.93 × 286,254.35
  4. Step 4: Simplify right side
    685,499.40x = 294,148,647,288.61
  5. Step 5: Solve for x
    x = 294,148,647,288.61/685,499.40
  6. Step 6: Final answer
    x = 429,101.25

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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.