Home / 1,316,140.52-1,972,902.93-915,940.53

Finding the Fourth Proportional to 1,316,140.52, 1,972,902.93 and 915,940.53

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Solution

The fourth proportional to 1,316,140.52, 1,972,902.93 and 915,940.53 is: 1,373,000.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,140.52 : 1,972,902.93 = 915,940.53 : x
  2. Step 2: Convert to fraction form
    1,316,140.52/1,972,902.93 = 915,940.53/x
  3. Step 3: Cross multiply
    1,316,140.52x = 1,972,902.93 × 915,940.53
  4. Step 4: Simplify right side
    1,316,140.52x = 1,807,061,765,185.01
  5. Step 5: Solve for x
    x = 1,807,061,765,185.01/1,316,140.52
  6. Step 6: Final answer
    x = 1,373,000.63

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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.