Home / 858,565.14-1,287,847.80-297,599.64

Finding the Fourth Proportional to 858,565.14, 1,287,847.80 and 297,599.64

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Solution

The fourth proportional to 858,565.14, 1,287,847.80 and 297,599.64 is: 446,399.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,565.14 : 1,287,847.80 = 297,599.64 : x
  2. Step 2: Convert to fraction form
    858,565.14/1,287,847.80 = 297,599.64/x
  3. Step 3: Cross multiply
    858,565.14x = 1,287,847.80 × 297,599.64
  4. Step 4: Simplify right side
    858,565.14x = 383,263,041,654.79
  5. Step 5: Solve for x
    x = 383,263,041,654.79/858,565.14
  6. Step 6: Final answer
    x = 446,399.49

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.