Home / 879,473.51-1,213,693.99-492,279.30

Finding the Fourth Proportional to 879,473.51, 1,213,693.99 and 492,279.30

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Solution

The fourth proportional to 879,473.51, 1,213,693.99 and 492,279.30 is: 679,356.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,473.51 : 1,213,693.99 = 492,279.30 : x
  2. Step 2: Convert to fraction form
    879,473.51/1,213,693.99 = 492,279.30/x
  3. Step 3: Cross multiply
    879,473.51x = 1,213,693.99 × 492,279.30
  4. Step 4: Simplify right side
    879,473.51x = 597,476,427,811.41
  5. Step 5: Solve for x
    x = 597,476,427,811.41/879,473.51
  6. Step 6: Final answer
    x = 679,356.93

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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.