Home / 857,678.34-1,284,893.70-572,509.08

Finding the Fourth Proportional to 857,678.34, 1,284,893.70 and 572,509.08

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Solution

The fourth proportional to 857,678.34, 1,284,893.70 and 572,509.08 is: 857,679.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,678.34 : 1,284,893.70 = 572,509.08 : x
  2. Step 2: Convert to fraction form
    857,678.34/1,284,893.70 = 572,509.08/x
  3. Step 3: Cross multiply
    857,678.34x = 1,284,893.70 × 572,509.08
  4. Step 4: Simplify right side
    857,678.34x = 735,613,310,084.80
  5. Step 5: Solve for x
    x = 735,613,310,084.80/857,678.34
  6. Step 6: Final answer
    x = 857,679.71

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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.