Home / 821,440.50-1,133,587.90-463,744.50

Finding the Fourth Proportional to 821,440.50, 1,133,587.90 and 463,744.50

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Solution

The fourth proportional to 821,440.50, 1,133,587.90 and 463,744.50 is: 639,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,440.50 : 1,133,587.90 = 463,744.50 : x
  2. Step 2: Convert to fraction form
    821,440.50/1,133,587.90 = 463,744.50/x
  3. Step 3: Cross multiply
    821,440.50x = 1,133,587.90 × 463,744.50
  4. Step 4: Simplify right side
    821,440.50x = 525,695,153,891.55
  5. Step 5: Solve for x
    x = 525,695,153,891.55/821,440.50
  6. Step 6: Final answer
    x = 639,967.42

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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.