Home / 820,491.45-1,132,335.01-457,985.87

Finding the Fourth Proportional to 820,491.45, 1,132,335.01 and 457,985.87

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Solution

The fourth proportional to 820,491.45, 1,132,335.01 and 457,985.87 is: 632,052.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,491.45 : 1,132,335.01 = 457,985.87 : x
  2. Step 2: Convert to fraction form
    820,491.45/1,132,335.01 = 457,985.87/x
  3. Step 3: Cross multiply
    820,491.45x = 1,132,335.01 × 457,985.87
  4. Step 4: Simplify right side
    820,491.45x = 518,593,433,843.37
  5. Step 5: Solve for x
    x = 518,593,433,843.37/820,491.45
  6. Step 6: Final answer
    x = 632,052.21

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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.