Home / 723,971.80-1,085,957.70-458,032.60

Finding the Fourth Proportional to 723,971.80, 1,085,957.70 and 458,032.60

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Solution

The fourth proportional to 723,971.80, 1,085,957.70 and 458,032.60 is: 687,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,971.80 : 1,085,957.70 = 458,032.60 : x
  2. Step 2: Convert to fraction form
    723,971.80/1,085,957.70 = 458,032.60/x
  3. Step 3: Cross multiply
    723,971.80x = 1,085,957.70 × 458,032.60
  4. Step 4: Simplify right side
    723,971.80x = 497,404,028,821.02
  5. Step 5: Solve for x
    x = 497,404,028,821.02/723,971.80
  6. Step 6: Final answer
    x = 687,048.90

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1.5x scale

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.