Home / 4,280,710.80-6,421,066.20-1,288,894.80

Finding the Fourth Proportional to 4,280,710.80, 6,421,066.20 and 1,288,894.80

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Solution

The fourth proportional to 4,280,710.80, 6,421,066.20 and 1,288,894.80 is: 1,933,342.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280,710.80 : 6,421,066.20 = 1,288,894.80 : x
  2. Step 2: Convert to fraction form
    4,280,710.80/6,421,066.20 = 1,288,894.80/x
  3. Step 3: Cross multiply
    4,280,710.80x = 6,421,066.20 × 1,288,894.80
  4. Step 4: Simplify right side
    4,280,710.80x = 8,276,078,835,635.76
  5. Step 5: Solve for x
    x = 8,276,078,835,635.76/4,280,710.80
  6. Step 6: Final answer
    x = 1,933,342.20

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Double scale
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Similar ratio
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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.