Home / 1,431,856.60-1,975,924.20-778,462

Finding the Fourth Proportional to 1,431,856.60, 1,975,924.20 and 778,462

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Solution

The fourth proportional to 1,431,856.60, 1,975,924.20 and 778,462 is: 1,074,256.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,856.60 : 1,975,924.20 = 778,462 : x
  2. Step 2: Convert to fraction form
    1,431,856.60/1,975,924.20 = 778,462/x
  3. Step 3: Cross multiply
    1,431,856.60x = 1,975,924.20 × 778,462
  4. Step 4: Simplify right side
    1,431,856.60x = 1,538,181,904,580.40
  5. Step 5: Solve for x
    x = 1,538,181,904,580.40/1,431,856.60
  6. Step 6: Final answer
    x = 1,074,256.95

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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.