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Finding the Fourth Proportional to 578,028.60, 866,999.70 and 240,982.20

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Solution

The fourth proportional to 578,028.60, 866,999.70 and 240,982.20 is: 361,455.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,028.60 : 866,999.70 = 240,982.20 : x
  2. Step 2: Convert to fraction form
    578,028.60/866,999.70 = 240,982.20/x
  3. Step 3: Cross multiply
    578,028.60x = 866,999.70 × 240,982.20
  4. Step 4: Simplify right side
    578,028.60x = 208,931,495,105.34
  5. Step 5: Solve for x
    x = 208,931,495,105.34/578,028.60
  6. Step 6: Final answer
    x = 361,455.29

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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.