Home / 1,385,359.40-2,078,103.90-438,804.20

Finding the Fourth Proportional to 1,385,359.40, 2,078,103.90 and 438,804.20

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Solution

The fourth proportional to 1,385,359.40, 2,078,103.90 and 438,804.20 is: 658,226.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,359.40 : 2,078,103.90 = 438,804.20 : x
  2. Step 2: Convert to fraction form
    1,385,359.40/2,078,103.90 = 438,804.20/x
  3. Step 3: Cross multiply
    1,385,359.40x = 2,078,103.90 × 438,804.20
  4. Step 4: Simplify right side
    1,385,359.40x = 911,880,719,356.38
  5. Step 5: Solve for x
    x = 911,880,719,356.38/1,385,359.40
  6. Step 6: Final answer
    x = 658,226.83

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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.