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Finding the Fourth Proportional to 585,316, 807,770.64 and 330,660.64

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Solution

The fourth proportional to 585,316, 807,770.64 and 330,660.64 is: 456,331.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,316 : 807,770.64 = 330,660.64 : x
  2. Step 2: Convert to fraction form
    585,316/807,770.64 = 330,660.64/x
  3. Step 3: Cross multiply
    585,316x = 807,770.64 × 330,660.64
  4. Step 4: Simplify right side
    585,316x = 267,097,956,795.61
  5. Step 5: Solve for x
    x = 267,097,956,795.61/585,316
  6. Step 6: Final answer
    x = 456,331.21

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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.