Home / 989,108.16-1,483,911.72-457,005.39

Finding the Fourth Proportional to 989,108.16, 1,483,911.72 and 457,005.39

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Solution

The fourth proportional to 989,108.16, 1,483,911.72 and 457,005.39 is: 685,623.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,108.16 : 1,483,911.72 = 457,005.39 : x
  2. Step 2: Convert to fraction form
    989,108.16/1,483,911.72 = 457,005.39/x
  3. Step 3: Cross multiply
    989,108.16x = 1,483,911.72 × 457,005.39
  4. Step 4: Simplify right side
    989,108.16x = 678,155,654,324.17
  5. Step 5: Solve for x
    x = 678,155,654,324.17/989,108.16
  6. Step 6: Final answer
    x = 685,623.35

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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.