Home / 1,128,995.42-1,558,000.47-612,750.22

Finding the Fourth Proportional to 1,128,995.42, 1,558,000.47 and 612,750.22

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Solution

The fourth proportional to 1,128,995.42, 1,558,000.47 and 612,750.22 is: 845,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,995.42 : 1,558,000.47 = 612,750.22 : x
  2. Step 2: Convert to fraction form
    1,128,995.42/1,558,000.47 = 612,750.22/x
  3. Step 3: Cross multiply
    1,128,995.42x = 1,558,000.47 × 612,750.22
  4. Step 4: Simplify right side
    1,128,995.42x = 954,665,129,155.42
  5. Step 5: Solve for x
    x = 954,665,129,155.42/1,128,995.42
  6. Step 6: Final answer
    x = 845,588.14

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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.