Home / 858,798.24-1,286,235.40-409,834.40

Finding the Fourth Proportional to 858,798.24, 1,286,235.40 and 409,834.40

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Solution

The fourth proportional to 858,798.24, 1,286,235.40 and 409,834.40 is: 613,815.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,798.24 : 1,286,235.40 = 409,834.40 : x
  2. Step 2: Convert to fraction form
    858,798.24/1,286,235.40 = 409,834.40/x
  3. Step 3: Cross multiply
    858,798.24x = 1,286,235.40 × 409,834.40
  4. Step 4: Simplify right side
    858,798.24x = 527,143,513,417.76
  5. Step 5: Solve for x
    x = 527,143,513,417.76/858,798.24
  6. Step 6: Final answer
    x = 613,815.32

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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.