Home / 1,307,298.56-1,803,512.40-816,415.86

Finding the Fourth Proportional to 1,307,298.56, 1,803,512.40 and 816,415.86

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Solution

The fourth proportional to 1,307,298.56, 1,803,512.40 and 816,415.86 is: 1,126,304.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,298.56 : 1,803,512.40 = 816,415.86 : x
  2. Step 2: Convert to fraction form
    1,307,298.56/1,803,512.40 = 816,415.86/x
  3. Step 3: Cross multiply
    1,307,298.56x = 1,803,512.40 × 816,415.86
  4. Step 4: Simplify right side
    1,307,298.56x = 1,472,416,127,066.66
  5. Step 5: Solve for x
    x = 1,472,416,127,066.66/1,307,298.56
  6. Step 6: Final answer
    x = 1,126,304.41

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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.