Home / 976,989.60-1,465,484.40-416,080.80

Finding the Fourth Proportional to 976,989.60, 1,465,484.40 and 416,080.80

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Solution

The fourth proportional to 976,989.60, 1,465,484.40 and 416,080.80 is: 624,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,989.60 : 1,465,484.40 = 416,080.80 : x
  2. Step 2: Convert to fraction form
    976,989.60/1,465,484.40 = 416,080.80/x
  3. Step 3: Cross multiply
    976,989.60x = 1,465,484.40 × 416,080.80
  4. Step 4: Simplify right side
    976,989.60x = 609,759,921,539.52
  5. Step 5: Solve for x
    x = 609,759,921,539.52/976,989.60
  6. Step 6: Final answer
    x = 624,121.20

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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.