Home / 659,826.45-990,237.26-482,790.21

Finding the Fourth Proportional to 659,826.45, 990,237.26 and 482,790.21

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Solution

The fourth proportional to 659,826.45, 990,237.26 and 482,790.21 is: 724,549.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,826.45 : 990,237.26 = 482,790.21 : x
  2. Step 2: Convert to fraction form
    659,826.45/990,237.26 = 482,790.21/x
  3. Step 3: Cross multiply
    659,826.45x = 990,237.26 × 482,790.21
  4. Step 4: Simplify right side
    659,826.45x = 478,076,852,291.27
  5. Step 5: Solve for x
    x = 478,076,852,291.27/659,826.45
  6. Step 6: Final answer
    x = 724,549.39

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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.