Home / 765,697.24-1,056,672.30-421,573.24

Finding the Fourth Proportional to 765,697.24, 1,056,672.30 and 421,573.24

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Solution

The fourth proportional to 765,697.24, 1,056,672.30 and 421,573.24 is: 581,776.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,697.24 : 1,056,672.30 = 421,573.24 : x
  2. Step 2: Convert to fraction form
    765,697.24/1,056,672.30 = 421,573.24/x
  3. Step 3: Cross multiply
    765,697.24x = 1,056,672.30 × 421,573.24
  4. Step 4: Simplify right side
    765,697.24x = 445,464,765,129.25
  5. Step 5: Solve for x
    x = 445,464,765,129.25/765,697.24
  6. Step 6: Final answer
    x = 581,776.64

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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.