Home / 831,126.40-1,246,754.40-357,827.20

Finding the Fourth Proportional to 831,126.40, 1,246,754.40 and 357,827.20

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Solution

The fourth proportional to 831,126.40, 1,246,754.40 and 357,827.20 is: 536,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,126.40 : 1,246,754.40 = 357,827.20 : x
  2. Step 2: Convert to fraction form
    831,126.40/1,246,754.40 = 357,827.20/x
  3. Step 3: Cross multiply
    831,126.40x = 1,246,754.40 × 357,827.20
  4. Step 4: Simplify right side
    831,126.40x = 446,122,636,039.68
  5. Step 5: Solve for x
    x = 446,122,636,039.68/831,126.40
  6. Step 6: Final answer
    x = 536,768.70

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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.