Home / 997,430.10-1,494,039.15-660,632.10

Finding the Fourth Proportional to 997,430.10, 1,494,039.15 and 660,632.10

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Solution

The fourth proportional to 997,430.10, 1,494,039.15 and 660,632.10 is: 989,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,430.10 : 1,494,039.15 = 660,632.10 : x
  2. Step 2: Convert to fraction form
    997,430.10/1,494,039.15 = 660,632.10/x
  3. Step 3: Cross multiply
    997,430.10x = 1,494,039.15 × 660,632.10
  4. Step 4: Simplify right side
    997,430.10x = 987,010,221,146.72
  5. Step 5: Solve for x
    x = 987,010,221,146.72/997,430.10
  6. Step 6: Final answer
    x = 989,553.27

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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.