Home / 831,128.40-1,246,757.40-357,829.20

Finding the Fourth Proportional to 831,128.40, 1,246,757.40 and 357,829.20

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Solution

The fourth proportional to 831,128.40, 1,246,757.40 and 357,829.20 is: 536,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,128.40 : 1,246,757.40 = 357,829.20 : x
  2. Step 2: Convert to fraction form
    831,128.40/1,246,757.40 = 357,829.20/x
  3. Step 3: Cross multiply
    831,128.40x = 1,246,757.40 × 357,829.20
  4. Step 4: Simplify right side
    831,128.40x = 446,126,203,036.08
  5. Step 5: Solve for x
    x = 446,126,203,036.08/831,128.40
  6. Step 6: Final answer
    x = 536,771.70

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1.5x scale

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.