Home / 890,130.60-1,228,378.80-482,242.80

Finding the Fourth Proportional to 890,130.60, 1,228,378.80 and 482,242.80

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Solution

The fourth proportional to 890,130.60, 1,228,378.80 and 482,242.80 is: 665,494.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,130.60 : 1,228,378.80 = 482,242.80 : x
  2. Step 2: Convert to fraction form
    890,130.60/1,228,378.80 = 482,242.80/x
  3. Step 3: Cross multiply
    890,130.60x = 1,228,378.80 × 482,242.80
  4. Step 4: Simplify right side
    890,130.60x = 592,376,831,972.64
  5. Step 5: Solve for x
    x = 592,376,831,972.64/890,130.60
  6. Step 6: Final answer
    x = 665,494.29

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.