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Finding the Fourth Proportional to 585,090.60, 877,635.90 and 490,612.20

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Solution

The fourth proportional to 585,090.60, 877,635.90 and 490,612.20 is: 735,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,090.60 : 877,635.90 = 490,612.20 : x
  2. Step 2: Convert to fraction form
    585,090.60/877,635.90 = 490,612.20/x
  3. Step 3: Cross multiply
    585,090.60x = 877,635.90 × 490,612.20
  4. Step 4: Simplify right side
    585,090.60x = 430,578,879,697.98
  5. Step 5: Solve for x
    x = 430,578,879,697.98/585,090.60
  6. Step 6: Final answer
    x = 735,918.30

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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.