Home / 1,415,403.60-1,953,418.32-842,445.60

Finding the Fourth Proportional to 1,415,403.60, 1,953,418.32 and 842,445.60

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Solution

The fourth proportional to 1,415,403.60, 1,953,418.32 and 842,445.60 is: 1,162,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,403.60 : 1,953,418.32 = 842,445.60 : x
  2. Step 2: Convert to fraction form
    1,415,403.60/1,953,418.32 = 842,445.60/x
  3. Step 3: Cross multiply
    1,415,403.60x = 1,953,418.32 × 842,445.60
  4. Step 4: Simplify right side
    1,415,403.60x = 1,645,648,668,643.39
  5. Step 5: Solve for x
    x = 1,645,648,668,643.39/1,415,403.60
  6. Step 6: Final answer
    x = 1,162,670.96

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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.