Home / 837,479.80-1,255,830.90-363,921.40

Finding the Fourth Proportional to 837,479.80, 1,255,830.90 and 363,921.40

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Solution

The fourth proportional to 837,479.80, 1,255,830.90 and 363,921.40 is: 545,713.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,479.80 : 1,255,830.90 = 363,921.40 : x
  2. Step 2: Convert to fraction form
    837,479.80/1,255,830.90 = 363,921.40/x
  3. Step 3: Cross multiply
    837,479.80x = 1,255,830.90 × 363,921.40
  4. Step 4: Simplify right side
    837,479.80x = 457,023,739,291.26
  5. Step 5: Solve for x
    x = 457,023,739,291.26/837,479.80
  6. Step 6: Final answer
    x = 545,713.15

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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.