Home / 679,643.55-937,888.27-373,719.61

Finding the Fourth Proportional to 679,643.55, 937,888.27 and 373,719.61

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Solution

The fourth proportional to 679,643.55, 937,888.27 and 373,719.61 is: 515,722.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,643.55 : 937,888.27 = 373,719.61 : x
  2. Step 2: Convert to fraction form
    679,643.55/937,888.27 = 373,719.61/x
  3. Step 3: Cross multiply
    679,643.55x = 937,888.27 × 373,719.61
  4. Step 4: Simplify right side
    679,643.55x = 350,507,238,487.98
  5. Step 5: Solve for x
    x = 350,507,238,487.98/679,643.55
  6. Step 6: Final answer
    x = 515,722.16

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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.