Home / 709,604.42-1,064,876.72-389,979.50

Finding the Fourth Proportional to 709,604.42, 1,064,876.72 and 389,979.50

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Solution

The fourth proportional to 709,604.42, 1,064,876.72 and 389,979.50 is: 585,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,604.42 : 1,064,876.72 = 389,979.50 : x
  2. Step 2: Convert to fraction form
    709,604.42/1,064,876.72 = 389,979.50/x
  3. Step 3: Cross multiply
    709,604.42x = 1,064,876.72 × 389,979.50
  4. Step 4: Simplify right side
    709,604.42x = 415,280,090,827.24
  5. Step 5: Solve for x
    x = 415,280,090,827.24/709,604.42
  6. Step 6: Final answer
    x = 585,227.60

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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.