Home / 738,018.96-1,018,078.20-465,988.56

Finding the Fourth Proportional to 738,018.96, 1,018,078.20 and 465,988.56

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Solution

The fourth proportional to 738,018.96, 1,018,078.20 and 465,988.56 is: 642,819.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,018.96 : 1,018,078.20 = 465,988.56 : x
  2. Step 2: Convert to fraction form
    738,018.96/1,018,078.20 = 465,988.56/x
  3. Step 3: Cross multiply
    738,018.96x = 1,018,078.20 × 465,988.56
  4. Step 4: Simplify right side
    738,018.96x = 474,412,794,385.39
  5. Step 5: Solve for x
    x = 474,412,794,385.39/738,018.96
  6. Step 6: Final answer
    x = 642,819.25

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1.5x scale

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.