Home / 1,550,685.60-2,139,632.53-905,981.22

Finding the Fourth Proportional to 1,550,685.60, 2,139,632.53 and 905,981.22

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Solution

The fourth proportional to 1,550,685.60, 2,139,632.53 and 905,981.22 is: 1,250,070.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550,685.60 : 2,139,632.53 = 905,981.22 : x
  2. Step 2: Convert to fraction form
    1,550,685.60/2,139,632.53 = 905,981.22/x
  3. Step 3: Cross multiply
    1,550,685.60x = 2,139,632.53 × 905,981.22
  4. Step 4: Simplify right side
    1,550,685.60x = 1,938,466,887,616.13
  5. Step 5: Solve for x
    x = 1,938,466,887,616.13/1,550,685.60
  6. Step 6: Final answer
    x = 1,250,070.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.