Home / 738,445.25-1,019,055.36-398,913.50

Finding the Fourth Proportional to 738,445.25, 1,019,055.36 and 398,913.50

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Solution

The fourth proportional to 738,445.25, 1,019,055.36 and 398,913.50 is: 550,501.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,445.25 : 1,019,055.36 = 398,913.50 : x
  2. Step 2: Convert to fraction form
    738,445.25/1,019,055.36 = 398,913.50/x
  3. Step 3: Cross multiply
    738,445.25x = 1,019,055.36 × 398,913.50
  4. Step 4: Simplify right side
    738,445.25x = 406,514,940,351.36
  5. Step 5: Solve for x
    x = 406,514,940,351.36/738,445.25
  6. Step 6: Final answer
    x = 550,501.12

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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.