Home / 820,925.75-1,132,866.81-458,355.78

Finding the Fourth Proportional to 820,925.75, 1,132,866.81 and 458,355.78

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Solution

The fourth proportional to 820,925.75, 1,132,866.81 and 458,355.78 is: 632,524.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,925.75 : 1,132,866.81 = 458,355.78 : x
  2. Step 2: Convert to fraction form
    820,925.75/1,132,866.81 = 458,355.78/x
  3. Step 3: Cross multiply
    820,925.75x = 1,132,866.81 × 458,355.78
  4. Step 4: Simplify right side
    820,925.75x = 519,256,050,333.66
  5. Step 5: Solve for x
    x = 519,256,050,333.66/820,925.75
  6. Step 6: Final answer
    x = 632,524.99

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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.