Home / 1,431,857.60-1,975,925.58-778,463

Finding the Fourth Proportional to 1,431,857.60, 1,975,925.58 and 778,463

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Solution

The fourth proportional to 1,431,857.60, 1,975,925.58 and 778,463 is: 1,074,258.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,857.60 : 1,975,925.58 = 778,463 : x
  2. Step 2: Convert to fraction form
    1,431,857.60/1,975,925.58 = 778,463/x
  3. Step 3: Cross multiply
    1,431,857.60x = 1,975,925.58 × 778,463
  4. Step 4: Simplify right side
    1,431,857.60x = 1,538,184,954,783.54
  5. Step 5: Solve for x
    x = 1,538,184,954,783.54/1,431,857.60
  6. Step 6: Final answer
    x = 1,074,258.33

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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.