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Finding the Fourth Proportional to 702,400.71, 969,315.42 and 380,110.72

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Solution

The fourth proportional to 702,400.71, 969,315.42 and 380,110.72 is: 524,554.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,400.71 : 969,315.42 = 380,110.72 : x
  2. Step 2: Convert to fraction form
    702,400.71/969,315.42 = 380,110.72/x
  3. Step 3: Cross multiply
    702,400.71x = 969,315.42 × 380,110.72
  4. Step 4: Simplify right side
    702,400.71x = 368,447,182,203.30
  5. Step 5: Solve for x
    x = 368,447,182,203.30/702,400.71
  6. Step 6: Final answer
    x = 524,554.11

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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.