Home / 1,122,105.78-1,684,208.43-554,128.22

Finding the Fourth Proportional to 1,122,105.78, 1,684,208.43 and 554,128.22

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Solution

The fourth proportional to 1,122,105.78, 1,684,208.43 and 554,128.22 is: 831,710.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,105.78 : 1,684,208.43 = 554,128.22 : x
  2. Step 2: Convert to fraction form
    1,122,105.78/1,684,208.43 = 554,128.22/x
  3. Step 3: Cross multiply
    1,122,105.78x = 1,684,208.43 × 554,128.22
  4. Step 4: Simplify right side
    1,122,105.78x = 933,267,423,635.42
  5. Step 5: Solve for x
    x = 933,267,423,635.42/1,122,105.78
  6. Step 6: Final answer
    x = 831,710.74

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Double scale
Find fourth proportional to 1,122,106.78, 1,684,209.93 and 554,129.22
Similar ratio
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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.