Home / 765,000.56-1,055,738.16-425,461.52

Finding the Fourth Proportional to 765,000.56, 1,055,738.16 and 425,461.52

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Solution

The fourth proportional to 765,000.56, 1,055,738.16 and 425,461.52 is: 587,157.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,000.56 : 1,055,738.16 = 425,461.52 : x
  2. Step 2: Convert to fraction form
    765,000.56/1,055,738.16 = 425,461.52/x
  3. Step 3: Cross multiply
    765,000.56x = 1,055,738.16 × 425,461.52
  4. Step 4: Simplify right side
    765,000.56x = 449,175,962,275.60
  5. Step 5: Solve for x
    x = 449,175,962,275.60/765,000.56
  6. Step 6: Final answer
    x = 587,157.69

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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.