Home / 820,417.18-1,132,173.45-457,837.18

Finding the Fourth Proportional to 820,417.18, 1,132,173.45 and 457,837.18

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Solution

The fourth proportional to 820,417.18, 1,132,173.45 and 457,837.18 is: 631,814.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,417.18 : 1,132,173.45 = 457,837.18 : x
  2. Step 2: Convert to fraction form
    820,417.18/1,132,173.45 = 457,837.18/x
  3. Step 3: Cross multiply
    820,417.18x = 1,132,173.45 × 457,837.18
  4. Step 4: Simplify right side
    820,417.18x = 518,351,099,618.87
  5. Step 5: Solve for x
    x = 518,351,099,618.87/820,417.18
  6. Step 6: Final answer
    x = 631,814.05

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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.