Home / 1,415,405.60-1,953,421.08-842,447.60

Finding the Fourth Proportional to 1,415,405.60, 1,953,421.08 and 842,447.60

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Solution

The fourth proportional to 1,415,405.60, 1,953,421.08 and 842,447.60 is: 1,162,673.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,405.60 : 1,953,421.08 = 842,447.60 : x
  2. Step 2: Convert to fraction form
    1,415,405.60/1,953,421.08 = 842,447.60/x
  3. Step 3: Cross multiply
    1,415,405.60x = 1,953,421.08 × 842,447.60
  4. Step 4: Simplify right side
    1,415,405.60x = 1,645,654,900,635.41
  5. Step 5: Solve for x
    x = 1,645,654,900,635.41/1,415,405.60
  6. Step 6: Final answer
    x = 1,162,673.72

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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.