Home / 831,115.40-1,246,737.90-357,816.20

Finding the Fourth Proportional to 831,115.40, 1,246,737.90 and 357,816.20

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Solution

The fourth proportional to 831,115.40, 1,246,737.90 and 357,816.20 is: 536,752.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,115.40 : 1,246,737.90 = 357,816.20 : x
  2. Step 2: Convert to fraction form
    831,115.40/1,246,737.90 = 357,816.20/x
  3. Step 3: Cross multiply
    831,115.40x = 1,246,737.90 × 357,816.20
  4. Step 4: Simplify right side
    831,115.40x = 446,103,017,773.98
  5. Step 5: Solve for x
    x = 446,103,017,773.98/831,115.40
  6. Step 6: Final answer
    x = 536,752.20

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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.