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Finding the Fourth Proportional to 702,813.08, 969,883.80 and 380,527.04

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Solution

The fourth proportional to 702,813.08, 969,883.80 and 380,527.04 is: 525,128.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,813.08 : 969,883.80 = 380,527.04 : x
  2. Step 2: Convert to fraction form
    702,813.08/969,883.80 = 380,527.04/x
  3. Step 3: Cross multiply
    702,813.08x = 969,883.80 × 380,527.04
  4. Step 4: Simplify right side
    702,813.08x = 369,067,011,557.95
  5. Step 5: Solve for x
    x = 369,067,011,557.95/702,813.08
  6. Step 6: Final answer
    x = 525,128.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.