Home / 1,630,311.28-2,445,952.92-778,022.80

Finding the Fourth Proportional to 1,630,311.28, 2,445,952.92 and 778,022.80

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Solution

The fourth proportional to 1,630,311.28, 2,445,952.92 and 778,022.80 is: 1,167,266.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630,311.28 : 2,445,952.92 = 778,022.80 : x
  2. Step 2: Convert to fraction form
    1,630,311.28/2,445,952.92 = 778,022.80/x
  3. Step 3: Cross multiply
    1,630,311.28x = 2,445,952.92 × 778,022.80
  4. Step 4: Simplify right side
    1,630,311.28x = 1,903,007,139,486.58
  5. Step 5: Solve for x
    x = 1,903,007,139,486.58/1,630,311.28
  6. Step 6: Final answer
    x = 1,167,266.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.