Home / 772,500.88-1,064,717.16-513,915.28

Finding the Fourth Proportional to 772,500.88, 1,064,717.16 and 513,915.28

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Solution

The fourth proportional to 772,500.88, 1,064,717.16 and 513,915.28 is: 708,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,500.88 : 1,064,717.16 = 513,915.28 : x
  2. Step 2: Convert to fraction form
    772,500.88/1,064,717.16 = 513,915.28/x
  3. Step 3: Cross multiply
    772,500.88x = 1,064,717.16 × 513,915.28
  4. Step 4: Simplify right side
    772,500.88x = 547,174,417,402.21
  5. Step 5: Solve for x
    x = 547,174,417,402.21/772,500.88
  6. Step 6: Final answer
    x = 708,315.59

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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.