Home / 1,776,445.93-2,664,644.10-428,597.20

Finding the Fourth Proportional to 1,776,445.93, 2,664,644.10 and 428,597.20

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Solution

The fourth proportional to 1,776,445.93, 2,664,644.10 and 428,597.20 is: 642,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776,445.93 : 2,664,644.10 = 428,597.20 : x
  2. Step 2: Convert to fraction form
    1,776,445.93/2,664,644.10 = 428,597.20/x
  3. Step 3: Cross multiply
    1,776,445.93x = 2,664,644.10 × 428,597.20
  4. Step 4: Simplify right side
    1,776,445.93x = 1,142,059,000,256.52
  5. Step 5: Solve for x
    x = 1,142,059,000,256.52/1,776,445.93
  6. Step 6: Final answer
    x = 642,889.82

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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.