Home / 1,386,822.48-1,913,245.10-842,870.64

Finding the Fourth Proportional to 1,386,822.48, 1,913,245.10 and 842,870.64

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Solution

The fourth proportional to 1,386,822.48, 1,913,245.10 and 842,870.64 is: 1,162,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,822.48 : 1,913,245.10 = 842,870.64 : x
  2. Step 2: Convert to fraction form
    1,386,822.48/1,913,245.10 = 842,870.64/x
  3. Step 3: Cross multiply
    1,386,822.48x = 1,913,245.10 × 842,870.64
  4. Step 4: Simplify right side
    1,386,822.48x = 1,612,618,121,913.86
  5. Step 5: Solve for x
    x = 1,612,618,121,913.86/1,386,822.48
  6. Step 6: Final answer
    x = 1,162,815.10

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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.