Home / 878,984.70-1,318,477.05-247,890.30

Finding the Fourth Proportional to 878,984.70, 1,318,477.05 and 247,890.30

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Solution

The fourth proportional to 878,984.70, 1,318,477.05 and 247,890.30 is: 371,835.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,984.70 : 1,318,477.05 = 247,890.30 : x
  2. Step 2: Convert to fraction form
    878,984.70/1,318,477.05 = 247,890.30/x
  3. Step 3: Cross multiply
    878,984.70x = 1,318,477.05 × 247,890.30
  4. Step 4: Simplify right side
    878,984.70x = 326,837,671,467.62
  5. Step 5: Solve for x
    x = 326,837,671,467.62/878,984.70
  6. Step 6: Final answer
    x = 371,835.45

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Double scale
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Similar ratio
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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.