Home / 579,664.49-869,747.02-313,612.29

Finding the Fourth Proportional to 579,664.49, 869,747.02 and 313,612.29

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Solution

The fourth proportional to 579,664.49, 869,747.02 and 313,612.29 is: 470,553.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,664.49 : 869,747.02 = 313,612.29 : x
  2. Step 2: Convert to fraction form
    579,664.49/869,747.02 = 313,612.29/x
  3. Step 3: Cross multiply
    579,664.49x = 869,747.02 × 313,612.29
  4. Step 4: Simplify right side
    579,664.49x = 272,763,353,878.85
  5. Step 5: Solve for x
    x = 272,763,353,878.85/579,664.49
  6. Step 6: Final answer
    x = 470,553.85

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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.