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Finding the Fourth Proportional to 662,409.60, 914,119.68 and 360,602.88

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Solution

The fourth proportional to 662,409.60, 914,119.68 and 360,602.88 is: 497,628.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,409.60 : 914,119.68 = 360,602.88 : x
  2. Step 2: Convert to fraction form
    662,409.60/914,119.68 = 360,602.88/x
  3. Step 3: Cross multiply
    662,409.60x = 914,119.68 × 360,602.88
  4. Step 4: Simplify right side
    662,409.60x = 329,634,189,272.68
  5. Step 5: Solve for x
    x = 329,634,189,272.68/662,409.60
  6. Step 6: Final answer
    x = 497,628.94

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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.