Home / 626,964.36-940,320.72-306,978.30

Finding the Fourth Proportional to 626,964.36, 940,320.72 and 306,978.30

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Solution

The fourth proportional to 626,964.36, 940,320.72 and 306,978.30 is: 460,405.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,964.36 : 940,320.72 = 306,978.30 : x
  2. Step 2: Convert to fraction form
    626,964.36/940,320.72 = 306,978.30/x
  3. Step 3: Cross multiply
    626,964.36x = 940,320.72 × 306,978.30
  4. Step 4: Simplify right side
    626,964.36x = 288,658,056,080.38
  5. Step 5: Solve for x
    x = 288,658,056,080.38/626,964.36
  6. Step 6: Final answer
    x = 460,405.85

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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.