Home / 1,208,821.95-1,812,608.69-355,782.60

Finding the Fourth Proportional to 1,208,821.95, 1,812,608.69 and 355,782.60

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Solution

The fourth proportional to 1,208,821.95, 1,812,608.69 and 355,782.60 is: 533,490.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,821.95 : 1,812,608.69 = 355,782.60 : x
  2. Step 2: Convert to fraction form
    1,208,821.95/1,812,608.69 = 355,782.60/x
  3. Step 3: Cross multiply
    1,208,821.95x = 1,812,608.69 × 355,782.60
  4. Step 4: Simplify right side
    1,208,821.95x = 644,894,630,731.88
  5. Step 5: Solve for x
    x = 644,894,630,731.88/1,208,821.95
  6. Step 6: Final answer
    x = 533,490.17

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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.