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Finding the Fourth Proportional to 515,056.40, 772,584.60 and 337,666.40

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Solution

The fourth proportional to 515,056.40, 772,584.60 and 337,666.40 is: 506,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,056.40 : 772,584.60 = 337,666.40 : x
  2. Step 2: Convert to fraction form
    515,056.40/772,584.60 = 337,666.40/x
  3. Step 3: Cross multiply
    515,056.40x = 772,584.60 × 337,666.40
  4. Step 4: Simplify right side
    515,056.40x = 260,875,860,577.44
  5. Step 5: Solve for x
    x = 260,875,860,577.44/515,056.40
  6. Step 6: Final answer
    x = 506,499.60

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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.