Home / 831,768.60-1,245,320.08-808,440.60

Finding the Fourth Proportional to 831,768.60, 1,245,320.08 and 808,440.60

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Solution

The fourth proportional to 831,768.60, 1,245,320.08 and 808,440.60 is: 1,210,393.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,768.60 : 1,245,320.08 = 808,440.60 : x
  2. Step 2: Convert to fraction form
    831,768.60/1,245,320.08 = 808,440.60/x
  3. Step 3: Cross multiply
    831,768.60x = 1,245,320.08 × 808,440.60
  4. Step 4: Simplify right side
    831,768.60x = 1,006,767,312,667.25
  5. Step 5: Solve for x
    x = 1,006,767,312,667.25/831,768.60
  6. Step 6: Final answer
    x = 1,210,393.51

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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.