Home / 820,429.61-1,132,249.70-457,924.19

Finding the Fourth Proportional to 820,429.61, 1,132,249.70 and 457,924.19

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Solution

The fourth proportional to 820,429.61, 1,132,249.70 and 457,924.19 is: 631,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,429.61 : 1,132,249.70 = 457,924.19 : x
  2. Step 2: Convert to fraction form
    820,429.61/1,132,249.70 = 457,924.19/x
  3. Step 3: Cross multiply
    820,429.61x = 1,132,249.70 × 457,924.19
  4. Step 4: Simplify right side
    820,429.61x = 518,484,524,460.62
  5. Step 5: Solve for x
    x = 518,484,524,460.62/820,429.61
  6. Step 6: Final answer
    x = 631,967.10

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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.