Home / 772,493.88-1,064,707.50-513,908.28

Finding the Fourth Proportional to 772,493.88, 1,064,707.50 and 513,908.28

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Solution

The fourth proportional to 772,493.88, 1,064,707.50 and 513,908.28 is: 708,305.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,493.88 : 1,064,707.50 = 513,908.28 : x
  2. Step 2: Convert to fraction form
    772,493.88/1,064,707.50 = 513,908.28/x
  3. Step 3: Cross multiply
    772,493.88x = 1,064,707.50 × 513,908.28
  4. Step 4: Simplify right side
    772,493.88x = 547,162,000,028.10
  5. Step 5: Solve for x
    x = 547,162,000,028.10/772,493.88
  6. Step 6: Final answer
    x = 708,305.94

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Double scale
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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.