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Finding the Fourth Proportional to 538,707.60, 808,061.40 and 349,750.80

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Solution

The fourth proportional to 538,707.60, 808,061.40 and 349,750.80 is: 524,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,707.60 : 808,061.40 = 349,750.80 : x
  2. Step 2: Convert to fraction form
    538,707.60/808,061.40 = 349,750.80/x
  3. Step 3: Cross multiply
    538,707.60x = 808,061.40 × 349,750.80
  4. Step 4: Simplify right side
    538,707.60x = 282,620,121,099.12
  5. Step 5: Solve for x
    x = 282,620,121,099.12/538,707.60
  6. Step 6: Final answer
    x = 524,626.20

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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.