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Finding the Fourth Proportional to 540,721.60, 811,543.20 and 241,662.40

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Solution

The fourth proportional to 540,721.60, 811,543.20 and 241,662.40 is: 362,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,721.60 : 811,543.20 = 241,662.40 : x
  2. Step 2: Convert to fraction form
    540,721.60/811,543.20 = 241,662.40/x
  3. Step 3: Cross multiply
    540,721.60x = 811,543.20 × 241,662.40
  4. Step 4: Simplify right side
    540,721.60x = 196,119,477,415.68
  5. Step 5: Solve for x
    x = 196,119,477,415.68/540,721.60
  6. Step 6: Final answer
    x = 362,699.54

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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.