Home / 961,611.60-1,440,667.80-783,152.40

Finding the Fourth Proportional to 961,611.60, 1,440,667.80 and 783,152.40

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Solution

The fourth proportional to 961,611.60, 1,440,667.80 and 783,152.40 is: 1,173,303.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,611.60 : 1,440,667.80 = 783,152.40 : x
  2. Step 2: Convert to fraction form
    961,611.60/1,440,667.80 = 783,152.40/x
  3. Step 3: Cross multiply
    961,611.60x = 1,440,667.80 × 783,152.40
  4. Step 4: Simplify right side
    961,611.60x = 1,128,262,445,172.72
  5. Step 5: Solve for x
    x = 1,128,262,445,172.72/961,611.60
  6. Step 6: Final answer
    x = 1,173,303.70

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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.