Home / 879,473.01-1,213,693.30-492,278.80

Finding the Fourth Proportional to 879,473.01, 1,213,693.30 and 492,278.80

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Solution

The fourth proportional to 879,473.01, 1,213,693.30 and 492,278.80 is: 679,356.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,473.01 : 1,213,693.30 = 492,278.80 : x
  2. Step 2: Convert to fraction form
    879,473.01/1,213,693.30 = 492,278.80/x
  3. Step 3: Cross multiply
    879,473.01x = 1,213,693.30 × 492,278.80
  4. Step 4: Simplify right side
    879,473.01x = 597,475,481,148.83
  5. Step 5: Solve for x
    x = 597,475,481,148.83/879,473.01
  6. Step 6: Final answer
    x = 679,356.25

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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.