Home / 875,103.60-1,312,493.40-243,886.80

Finding the Fourth Proportional to 875,103.60, 1,312,493.40 and 243,886.80

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Solution

The fourth proportional to 875,103.60, 1,312,493.40 and 243,886.80 is: 365,785.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,103.60 : 1,312,493.40 = 243,886.80 : x
  2. Step 2: Convert to fraction form
    875,103.60/1,312,493.40 = 243,886.80/x
  3. Step 3: Cross multiply
    875,103.60x = 1,312,493.40 × 243,886.80
  4. Step 4: Simplify right side
    875,103.60x = 320,099,815,347.12
  5. Step 5: Solve for x
    x = 320,099,815,347.12/875,103.60
  6. Step 6: Final answer
    x = 365,785.05

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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.