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Finding the Fourth Proportional to 585,087.30, 877,630.95 and 490,608.90

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Solution

The fourth proportional to 585,087.30, 877,630.95 and 490,608.90 is: 735,913.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,087.30 : 877,630.95 = 490,608.90 : x
  2. Step 2: Convert to fraction form
    585,087.30/877,630.95 = 490,608.90/x
  3. Step 3: Cross multiply
    585,087.30x = 877,630.95 × 490,608.90
  4. Step 4: Simplify right side
    585,087.30x = 430,573,554,985.46
  5. Step 5: Solve for x
    x = 430,573,554,985.46/585,087.30
  6. Step 6: Final answer
    x = 735,913.35

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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.