Home / 823,983.04-1,235,663.52-380,440

Finding the Fourth Proportional to 823,983.04, 1,235,663.52 and 380,440

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Solution

The fourth proportional to 823,983.04, 1,235,663.52 and 380,440 is: 570,516.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,983.04 : 1,235,663.52 = 380,440 : x
  2. Step 2: Convert to fraction form
    823,983.04/1,235,663.52 = 380,440/x
  3. Step 3: Cross multiply
    823,983.04x = 1,235,663.52 × 380,440
  4. Step 4: Simplify right side
    823,983.04x = 470,095,829,548.80
  5. Step 5: Solve for x
    x = 470,095,829,548.80/823,983.04
  6. Step 6: Final answer
    x = 570,516.39

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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.