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Finding the Fourth Proportional to 662,009.64, 913,433.92 and 432,902.76

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Solution

The fourth proportional to 662,009.64, 913,433.92 and 432,902.76 is: 597,314.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,009.64 : 913,433.92 = 432,902.76 : x
  2. Step 2: Convert to fraction form
    662,009.64/913,433.92 = 432,902.76/x
  3. Step 3: Cross multiply
    662,009.64x = 913,433.92 × 432,902.76
  4. Step 4: Simplify right side
    662,009.64x = 395,428,065,045.62
  5. Step 5: Solve for x
    x = 395,428,065,045.62/662,009.64
  6. Step 6: Final answer
    x = 597,314.66

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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.