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Finding the Fourth Proportional to 540,734.80, 811,102.20 and 470,750.80

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Solution

The fourth proportional to 540,734.80, 811,102.20 and 470,750.80 is: 706,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,734.80 : 811,102.20 = 470,750.80 : x
  2. Step 2: Convert to fraction form
    540,734.80/811,102.20 = 470,750.80/x
  3. Step 3: Cross multiply
    540,734.80x = 811,102.20 × 470,750.80
  4. Step 4: Simplify right side
    540,734.80x = 381,827,009,531.76
  5. Step 5: Solve for x
    x = 381,827,009,531.76/540,734.80
  6. Step 6: Final answer
    x = 706,126.20

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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.