Home / 786,782.72-1,085,748.48-442,592.64

Finding the Fourth Proportional to 786,782.72, 1,085,748.48 and 442,592.64

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Solution

The fourth proportional to 786,782.72, 1,085,748.48 and 442,592.64 is: 610,771.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,782.72 : 1,085,748.48 = 442,592.64 : x
  2. Step 2: Convert to fraction form
    786,782.72/1,085,748.48 = 442,592.64/x
  3. Step 3: Cross multiply
    786,782.72x = 1,085,748.48 × 442,592.64
  4. Step 4: Simplify right side
    786,782.72x = 480,544,286,139.19
  5. Step 5: Solve for x
    x = 480,544,286,139.19/786,782.72
  6. Step 6: Final answer
    x = 610,771.28

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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.