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Finding the Fourth Proportional to 540,106.40, 808,604.40 and 484,119.20

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Solution

The fourth proportional to 540,106.40, 808,604.40 and 484,119.20 is: 724,784.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,106.40 : 808,604.40 = 484,119.20 : x
  2. Step 2: Convert to fraction form
    540,106.40/808,604.40 = 484,119.20/x
  3. Step 3: Cross multiply
    540,106.40x = 808,604.40 × 484,119.20
  4. Step 4: Simplify right side
    540,106.40x = 391,460,915,244.48
  5. Step 5: Solve for x
    x = 391,460,915,244.48/540,106.40
  6. Step 6: Final answer
    x = 724,784.81

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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.