Home / 917,729.33-1,376,621.16-438,007.69

Finding the Fourth Proportional to 917,729.33, 1,376,621.16 and 438,007.69

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Solution

The fourth proportional to 917,729.33, 1,376,621.16 and 438,007.69 is: 657,024.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,729.33 : 1,376,621.16 = 438,007.69 : x
  2. Step 2: Convert to fraction form
    917,729.33/1,376,621.16 = 438,007.69/x
  3. Step 3: Cross multiply
    917,729.33x = 1,376,621.16 × 438,007.69
  4. Step 4: Simplify right side
    917,729.33x = 602,970,649,212.64
  5. Step 5: Solve for x
    x = 602,970,649,212.64/917,729.33
  6. Step 6: Final answer
    x = 657,024.49

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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.