Home / 1,430,141.76-1,973,106.78-818,071.53

Finding the Fourth Proportional to 1,430,141.76, 1,973,106.78 and 818,071.53

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Solution

The fourth proportional to 1,430,141.76, 1,973,106.78 and 818,071.53 is: 1,128,659.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,141.76 : 1,973,106.78 = 818,071.53 : x
  2. Step 2: Convert to fraction form
    1,430,141.76/1,973,106.78 = 818,071.53/x
  3. Step 3: Cross multiply
    1,430,141.76x = 1,973,106.78 × 818,071.53
  4. Step 4: Simplify right side
    1,430,141.76x = 1,614,142,482,367.97
  5. Step 5: Solve for x
    x = 1,614,142,482,367.97/1,430,141.76
  6. Step 6: Final answer
    x = 1,128,659.08

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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.