Home / 820,139.34-1,131,825.10-457,594.89

Finding the Fourth Proportional to 820,139.34, 1,131,825.10 and 457,594.89

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Solution

The fourth proportional to 820,139.34, 1,131,825.10 and 457,594.89 is: 631,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,139.34 : 1,131,825.10 = 457,594.89 : x
  2. Step 2: Convert to fraction form
    820,139.34/1,131,825.10 = 457,594.89/x
  3. Step 3: Cross multiply
    820,139.34x = 1,131,825.10 × 457,594.89
  4. Step 4: Simplify right side
    820,139.34x = 517,917,377,603.40
  5. Step 5: Solve for x
    x = 517,917,377,603.40/820,139.34
  6. Step 6: Final answer
    x = 631,499.25

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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.