Home / 738,430.54-1,109,957.91-487,324.69

Finding the Fourth Proportional to 738,430.54, 1,109,957.91 and 487,324.69

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Solution

The fourth proportional to 738,430.54, 1,109,957.91 and 487,324.69 is: 732,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,430.54 : 1,109,957.91 = 487,324.69 : x
  2. Step 2: Convert to fraction form
    738,430.54/1,109,957.91 = 487,324.69/x
  3. Step 3: Cross multiply
    738,430.54x = 1,109,957.91 × 487,324.69
  4. Step 4: Simplify right side
    738,430.54x = 540,909,894,403.80
  5. Step 5: Solve for x
    x = 540,909,894,403.80/738,430.54
  6. Step 6: Final answer
    x = 732,512.90

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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.