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Finding the Fourth Proportional to 556,907.44, 767,951.38 and 330,509.20

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Solution

The fourth proportional to 556,907.44, 767,951.38 and 330,509.20 is: 455,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,907.44 : 767,951.38 = 330,509.20 : x
  2. Step 2: Convert to fraction form
    556,907.44/767,951.38 = 330,509.20/x
  3. Step 3: Cross multiply
    556,907.44x = 767,951.38 × 330,509.20
  4. Step 4: Simplify right side
    556,907.44x = 253,814,996,242.70
  5. Step 5: Solve for x
    x = 253,814,996,242.70/556,907.44
  6. Step 6: Final answer
    x = 455,757.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.