Home / 831,794.20-1,248,123.30-388,562.20

Finding the Fourth Proportional to 831,794.20, 1,248,123.30 and 388,562.20

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Solution

The fourth proportional to 831,794.20, 1,248,123.30 and 388,562.20 is: 583,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,794.20 : 1,248,123.30 = 388,562.20 : x
  2. Step 2: Convert to fraction form
    831,794.20/1,248,123.30 = 388,562.20/x
  3. Step 3: Cross multiply
    831,794.20x = 1,248,123.30 × 388,562.20
  4. Step 4: Simplify right side
    831,794.20x = 484,973,535,319.26
  5. Step 5: Solve for x
    x = 484,973,535,319.26/831,794.20
  6. Step 6: Final answer
    x = 583,045.10

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Double scale
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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.