Home / 598,642.20-899,000.10-579,979.80

Finding the Fourth Proportional to 598,642.20, 899,000.10 and 579,979.80

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Solution

The fourth proportional to 598,642.20, 899,000.10 and 579,979.80 is: 870,974.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,642.20 : 899,000.10 = 579,979.80 : x
  2. Step 2: Convert to fraction form
    598,642.20/899,000.10 = 579,979.80/x
  3. Step 3: Cross multiply
    598,642.20x = 899,000.10 × 579,979.80
  4. Step 4: Simplify right side
    598,642.20x = 521,401,898,197.98
  5. Step 5: Solve for x
    x = 521,401,898,197.98/598,642.20
  6. Step 6: Final answer
    x = 870,974.18

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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.