Home / 679,899.55-938,279.08-373,983.81

Finding the Fourth Proportional to 679,899.55, 938,279.08 and 373,983.81

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Solution

The fourth proportional to 679,899.55, 938,279.08 and 373,983.81 is: 516,107.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,899.55 : 938,279.08 = 373,983.81 : x
  2. Step 2: Convert to fraction form
    679,899.55/938,279.08 = 373,983.81/x
  3. Step 3: Cross multiply
    679,899.55x = 938,279.08 × 373,983.81
  4. Step 4: Simplify right side
    679,899.55x = 350,901,185,657.47
  5. Step 5: Solve for x
    x = 350,901,185,657.47/679,899.55
  6. Step 6: Final answer
    x = 516,107.40

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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.