Home / 876,669.40-1,315,004.10-344,207.80

Finding the Fourth Proportional to 876,669.40, 1,315,004.10 and 344,207.80

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Solution

The fourth proportional to 876,669.40, 1,315,004.10 and 344,207.80 is: 516,311.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,669.40 : 1,315,004.10 = 344,207.80 : x
  2. Step 2: Convert to fraction form
    876,669.40/1,315,004.10 = 344,207.80/x
  3. Step 3: Cross multiply
    876,669.40x = 1,315,004.10 × 344,207.80
  4. Step 4: Simplify right side
    876,669.40x = 452,634,668,251.98
  5. Step 5: Solve for x
    x = 452,634,668,251.98/876,669.40
  6. Step 6: Final answer
    x = 516,311.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.