Home / 793,885.60-1,192,210.80-420,637.60

Finding the Fourth Proportional to 793,885.60, 1,192,210.80 and 420,637.60

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Solution

The fourth proportional to 793,885.60, 1,192,210.80 and 420,637.60 is: 631,688.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,885.60 : 1,192,210.80 = 420,637.60 : x
  2. Step 2: Convert to fraction form
    793,885.60/1,192,210.80 = 420,637.60/x
  3. Step 3: Cross multiply
    793,885.60x = 1,192,210.80 × 420,637.60
  4. Step 4: Simplify right side
    793,885.60x = 501,488,689,606.08
  5. Step 5: Solve for x
    x = 501,488,689,606.08/793,885.60
  6. Step 6: Final answer
    x = 631,688.86

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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.