Home / 779,526.80-1,168,415.40-330,171.20

Finding the Fourth Proportional to 779,526.80, 1,168,415.40 and 330,171.20

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Solution

The fourth proportional to 779,526.80, 1,168,415.40 and 330,171.20 is: 494,886.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,526.80 : 1,168,415.40 = 330,171.20 : x
  2. Step 2: Convert to fraction form
    779,526.80/1,168,415.40 = 330,171.20/x
  3. Step 3: Cross multiply
    779,526.80x = 1,168,415.40 × 330,171.20
  4. Step 4: Simplify right side
    779,526.80x = 385,777,114,716.48
  5. Step 5: Solve for x
    x = 385,777,114,716.48/779,526.80
  6. Step 6: Final answer
    x = 494,886.28

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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.