Home / 874,851.60-1,312,115.40-243,634.80

Finding the Fourth Proportional to 874,851.60, 1,312,115.40 and 243,634.80

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Solution

The fourth proportional to 874,851.60, 1,312,115.40 and 243,634.80 is: 365,407.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,851.60 : 1,312,115.40 = 243,634.80 : x
  2. Step 2: Convert to fraction form
    874,851.60/1,312,115.40 = 243,634.80/x
  3. Step 3: Cross multiply
    874,851.60x = 1,312,115.40 × 243,634.80
  4. Step 4: Simplify right side
    874,851.60x = 319,676,973,055.92
  5. Step 5: Solve for x
    x = 319,676,973,055.92/874,851.60
  6. Step 6: Final answer
    x = 365,407.09

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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.