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Finding the Fourth Proportional to 878,683.80, 1,317,767.32 and 373,240.77

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Solution

The fourth proportional to 878,683.80, 1,317,767.32 and 373,240.77 is: 559,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,683.80 : 1,317,767.32 = 373,240.77 : x
  2. Step 2: Convert to fraction form
    878,683.80/1,317,767.32 = 373,240.77/x
  3. Step 3: Cross multiply
    878,683.80x = 1,317,767.32 × 373,240.77
  4. Step 4: Simplify right side
    878,683.80x = 491,844,489,197.64
  5. Step 5: Solve for x
    x = 491,844,489,197.64/878,683.80
  6. Step 6: Final answer
    x = 559,751.40

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1.5x scale

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.