Home / 1,122,106.78-1,684,209.93-554,129.22

Finding the Fourth Proportional to 1,122,106.78, 1,684,209.93 and 554,129.22

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Solution

The fourth proportional to 1,122,106.78, 1,684,209.93 and 554,129.22 is: 831,712.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,106.78 : 1,684,209.93 = 554,129.22 : x
  2. Step 2: Convert to fraction form
    1,122,106.78/1,684,209.93 = 554,129.22/x
  3. Step 3: Cross multiply
    1,122,106.78x = 1,684,209.93 × 554,129.22
  4. Step 4: Simplify right side
    1,122,106.78x = 933,269,934,827.16
  5. Step 5: Solve for x
    x = 933,269,934,827.16/1,122,106.78
  6. Step 6: Final answer
    x = 831,712.23

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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.