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Finding the Fourth Proportional to 702,799.60, 969,851.64 and 380,507.08

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Solution

The fourth proportional to 702,799.60, 969,851.64 and 380,507.08 is: 525,093.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,799.60 : 969,851.64 = 380,507.08 : x
  2. Step 2: Convert to fraction form
    702,799.60/969,851.64 = 380,507.08/x
  3. Step 3: Cross multiply
    702,799.60x = 969,851.64 × 380,507.08
  4. Step 4: Simplify right side
    702,799.60x = 369,035,415,569.61
  5. Step 5: Solve for x
    x = 369,035,415,569.61/702,799.60
  6. Step 6: Final answer
    x = 525,093.38

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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.