Home / 1,078,439.20-1,617,658.80-547,597.60

Finding the Fourth Proportional to 1,078,439.20, 1,617,658.80 and 547,597.60

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Solution

The fourth proportional to 1,078,439.20, 1,617,658.80 and 547,597.60 is: 821,396.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,439.20 : 1,617,658.80 = 547,597.60 : x
  2. Step 2: Convert to fraction form
    1,078,439.20/1,617,658.80 = 547,597.60/x
  3. Step 3: Cross multiply
    1,078,439.20x = 1,617,658.80 × 547,597.60
  4. Step 4: Simplify right side
    1,078,439.20x = 885,826,076,498.88
  5. Step 5: Solve for x
    x = 885,826,076,498.88/1,078,439.20
  6. Step 6: Final answer
    x = 821,396.40

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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.