Home / 785,988.80-1,176,650.40-520,049.60

Finding the Fourth Proportional to 785,988.80, 1,176,650.40 and 520,049.60

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Solution

The fourth proportional to 785,988.80, 1,176,650.40 and 520,049.60 is: 778,530.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,988.80 : 1,176,650.40 = 520,049.60 : x
  2. Step 2: Convert to fraction form
    785,988.80/1,176,650.40 = 520,049.60/x
  3. Step 3: Cross multiply
    785,988.80x = 1,176,650.40 × 520,049.60
  4. Step 4: Simplify right side
    785,988.80x = 611,916,569,859.84
  5. Step 5: Solve for x
    x = 611,916,569,859.84/785,988.80
  6. Step 6: Final answer
    x = 778,530.90

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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.