Home / 1,287,631.60-1,931,447.40-955,855.60

Finding the Fourth Proportional to 1,287,631.60, 1,931,447.40 and 955,855.60

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Solution

The fourth proportional to 1,287,631.60, 1,931,447.40 and 955,855.60 is: 1,433,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,631.60 : 1,931,447.40 = 955,855.60 : x
  2. Step 2: Convert to fraction form
    1,287,631.60/1,931,447.40 = 955,855.60/x
  3. Step 3: Cross multiply
    1,287,631.60x = 1,931,447.40 × 955,855.60
  4. Step 4: Simplify right side
    1,287,631.60x = 1,846,184,813,395.44
  5. Step 5: Solve for x
    x = 1,846,184,813,395.44/1,287,631.60
  6. Step 6: Final answer
    x = 1,433,783.40

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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.