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Finding the Fourth Proportional to 530,392.78, 794,322.84 and 305,280.04

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Solution

The fourth proportional to 530,392.78, 794,322.84 and 305,280.04 is: 457,191.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,392.78 : 794,322.84 = 305,280.04 : x
  2. Step 2: Convert to fraction form
    530,392.78/794,322.84 = 305,280.04/x
  3. Step 3: Cross multiply
    530,392.78x = 794,322.84 × 305,280.04
  4. Step 4: Simplify right side
    530,392.78x = 242,490,908,368.11
  5. Step 5: Solve for x
    x = 242,490,908,368.11/530,392.78
  6. Step 6: Final answer
    x = 457,191.19

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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.