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Finding the Fourth Proportional to 539,384.40, 808,882.20 and 273,056.40

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Solution

The fourth proportional to 539,384.40, 808,882.20 and 273,056.40 is: 409,486.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,384.40 : 808,882.20 = 273,056.40 : x
  2. Step 2: Convert to fraction form
    539,384.40/808,882.20 = 273,056.40/x
  3. Step 3: Cross multiply
    539,384.40x = 808,882.20 × 273,056.40
  4. Step 4: Simplify right side
    539,384.40x = 220,870,461,556.08
  5. Step 5: Solve for x
    x = 220,870,461,556.08/539,384.40
  6. Step 6: Final answer
    x = 409,486.19

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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.