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Finding the Fourth Proportional to 585,078.80, 877,618.20 and 490,600.40

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Solution

The fourth proportional to 585,078.80, 877,618.20 and 490,600.40 is: 735,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,078.80 : 877,618.20 = 490,600.40 : x
  2. Step 2: Convert to fraction form
    585,078.80/877,618.20 = 490,600.40/x
  3. Step 3: Cross multiply
    585,078.80x = 877,618.20 × 490,600.40
  4. Step 4: Simplify right side
    585,078.80x = 430,559,839,967.28
  5. Step 5: Solve for x
    x = 430,559,839,967.28/585,078.80
  6. Step 6: Final answer
    x = 735,900.60

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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.