Home / 820,376.64-1,132,117.64-457,796.66

Finding the Fourth Proportional to 820,376.64, 1,132,117.64 and 457,796.66

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Solution

The fourth proportional to 820,376.64, 1,132,117.64 and 457,796.66 is: 631,758.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,376.64 : 1,132,117.64 = 457,796.66 : x
  2. Step 2: Convert to fraction form
    820,376.64/1,132,117.64 = 457,796.66/x
  3. Step 3: Cross multiply
    820,376.64x = 1,132,117.64 × 457,796.66
  4. Step 4: Simplify right side
    820,376.64x = 518,279,674,319.08
  5. Step 5: Solve for x
    x = 518,279,674,319.08/820,376.64
  6. Step 6: Final answer
    x = 631,758.21

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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.