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Finding the Fourth Proportional to 538,812.40, 808,218.60 and 349,855.60

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Solution

The fourth proportional to 538,812.40, 808,218.60 and 349,855.60 is: 524,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,812.40 : 808,218.60 = 349,855.60 : x
  2. Step 2: Convert to fraction form
    538,812.40/808,218.60 = 349,855.60/x
  3. Step 3: Cross multiply
    538,812.40x = 808,218.60 × 349,855.60
  4. Step 4: Simplify right side
    538,812.40x = 282,759,803,234.16
  5. Step 5: Solve for x
    x = 282,759,803,234.16/538,812.40
  6. Step 6: Final answer
    x = 524,783.40

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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.