Home / 989,999.96-1,366,004.86-602,711.42

Finding the Fourth Proportional to 989,999.96, 1,366,004.86 and 602,711.42

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Solution

The fourth proportional to 989,999.96, 1,366,004.86 and 602,711.42 is: 831,622.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,999.96 : 1,366,004.86 = 602,711.42 : x
  2. Step 2: Convert to fraction form
    989,999.96/1,366,004.86 = 602,711.42/x
  3. Step 3: Cross multiply
    989,999.96x = 1,366,004.86 × 602,711.42
  4. Step 4: Simplify right side
    989,999.96x = 823,306,720,560.70
  5. Step 5: Solve for x
    x = 823,306,720,560.70/989,999.96
  6. Step 6: Final answer
    x = 831,622.99

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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.