Home / 860,835.60-1,291,253.40-808,347.60

Finding the Fourth Proportional to 860,835.60, 1,291,253.40 and 808,347.60

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Solution

The fourth proportional to 860,835.60, 1,291,253.40 and 808,347.60 is: 1,212,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,835.60 : 1,291,253.40 = 808,347.60 : x
  2. Step 2: Convert to fraction form
    860,835.60/1,291,253.40 = 808,347.60/x
  3. Step 3: Cross multiply
    860,835.60x = 1,291,253.40 × 808,347.60
  4. Step 4: Simplify right side
    860,835.60x = 1,043,781,586,881.84
  5. Step 5: Solve for x
    x = 1,043,781,586,881.84/860,835.60
  6. Step 6: Final answer
    x = 1,212,521.40

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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.