Home / 1,223,644.28-1,688,784.80-740,212.88

Finding the Fourth Proportional to 1,223,644.28, 1,688,784.80 and 740,212.88

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Solution

The fourth proportional to 1,223,644.28, 1,688,784.80 and 740,212.88 is: 1,021,587.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,644.28 : 1,688,784.80 = 740,212.88 : x
  2. Step 2: Convert to fraction form
    1,223,644.28/1,688,784.80 = 740,212.88/x
  3. Step 3: Cross multiply
    1,223,644.28x = 1,688,784.80 × 740,212.88
  4. Step 4: Simplify right side
    1,223,644.28x = 1,250,060,260,508.22
  5. Step 5: Solve for x
    x = 1,250,060,260,508.22/1,223,644.28
  6. Step 6: Final answer
    x = 1,021,587.96

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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.