Home / 1,230,162.30-1,845,243.45-915,234.30

Finding the Fourth Proportional to 1,230,162.30, 1,845,243.45 and 915,234.30

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Solution

The fourth proportional to 1,230,162.30, 1,845,243.45 and 915,234.30 is: 1,372,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,162.30 : 1,845,243.45 = 915,234.30 : x
  2. Step 2: Convert to fraction form
    1,230,162.30/1,845,243.45 = 915,234.30/x
  3. Step 3: Cross multiply
    1,230,162.30x = 1,845,243.45 × 915,234.30
  4. Step 4: Simplify right side
    1,230,162.30x = 1,688,830,097,290.34
  5. Step 5: Solve for x
    x = 1,688,830,097,290.34/1,230,162.30
  6. Step 6: Final answer
    x = 1,372,851.45

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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.