Home / 783,579.60-1,175,758.20-310,280.40

Finding the Fourth Proportional to 783,579.60, 1,175,758.20 and 310,280.40

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Solution

The fourth proportional to 783,579.60, 1,175,758.20 and 310,280.40 is: 465,574.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,579.60 : 1,175,758.20 = 310,280.40 : x
  2. Step 2: Convert to fraction form
    783,579.60/1,175,758.20 = 310,280.40/x
  3. Step 3: Cross multiply
    783,579.60x = 1,175,758.20 × 310,280.40
  4. Step 4: Simplify right side
    783,579.60x = 364,814,724,599.28
  5. Step 5: Solve for x
    x = 364,814,724,599.28/783,579.60
  6. Step 6: Final answer
    x = 465,574.56

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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.