Home / 679,900.46-938,243.05-373,976.82

Finding the Fourth Proportional to 679,900.46, 938,243.05 and 373,976.82

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Solution

The fourth proportional to 679,900.46, 938,243.05 and 373,976.82 is: 516,077.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,900.46 : 938,243.05 = 373,976.82 : x
  2. Step 2: Convert to fraction form
    679,900.46/938,243.05 = 373,976.82/x
  3. Step 3: Cross multiply
    679,900.46x = 938,243.05 × 373,976.82
  4. Step 4: Simplify right side
    679,900.46x = 350,881,151,291.16
  5. Step 5: Solve for x
    x = 350,881,151,291.16/679,900.46
  6. Step 6: Final answer
    x = 516,077.24

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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.