Home / 851,937.60-1,275,448.80-520,161.60

Finding the Fourth Proportional to 851,937.60, 1,275,448.80 and 520,161.60

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Solution

The fourth proportional to 851,937.60, 1,275,448.80 and 520,161.60 is: 778,741.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,937.60 : 1,275,448.80 = 520,161.60 : x
  2. Step 2: Convert to fraction form
    851,937.60/1,275,448.80 = 520,161.60/x
  3. Step 3: Cross multiply
    851,937.60x = 1,275,448.80 × 520,161.60
  4. Step 4: Simplify right side
    851,937.60x = 663,439,488,526.08
  5. Step 5: Solve for x
    x = 663,439,488,526.08/851,937.60
  6. Step 6: Final answer
    x = 778,741.88

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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.