Home / 821,255.16-1,133,220.13-458,632.79

Finding the Fourth Proportional to 821,255.16, 1,133,220.13 and 458,632.79

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Solution

The fourth proportional to 821,255.16, 1,133,220.13 and 458,632.79 is: 632,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,255.16 : 1,133,220.13 = 458,632.79 : x
  2. Step 2: Convert to fraction form
    821,255.16/1,133,220.13 = 458,632.79/x
  3. Step 3: Cross multiply
    821,255.16x = 1,133,220.13 × 458,632.79
  4. Step 4: Simplify right side
    821,255.16x = 519,731,901,946.80
  5. Step 5: Solve for x
    x = 519,731,901,946.80/821,255.16
  6. Step 6: Final answer
    x = 632,850.70

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1.5x scale

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.