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Finding the Fourth Proportional to 503,878.04, 755,812.35 and 204,287.40

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Solution

The fourth proportional to 503,878.04, 755,812.35 and 204,287.40 is: 306,429.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,878.04 : 755,812.35 = 204,287.40 : x
  2. Step 2: Convert to fraction form
    503,878.04/755,812.35 = 204,287.40/x
  3. Step 3: Cross multiply
    503,878.04x = 755,812.35 × 204,287.40
  4. Step 4: Simplify right side
    503,878.04x = 154,402,939,869.39
  5. Step 5: Solve for x
    x = 154,402,939,869.39/503,878.04
  6. Step 6: Final answer
    x = 306,429.19

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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.