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Finding the Fourth Proportional to 512,655.72, 702,326.63 and 493,488.40

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Solution

The fourth proportional to 512,655.72, 702,326.63 and 493,488.40 is: 676,067.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,655.72 : 702,326.63 = 493,488.40 : x
  2. Step 2: Convert to fraction form
    512,655.72/702,326.63 = 493,488.40/x
  3. Step 3: Cross multiply
    512,655.72x = 702,326.63 × 493,488.40
  4. Step 4: Simplify right side
    512,655.72x = 346,590,044,916.09
  5. Step 5: Solve for x
    x = 346,590,044,916.09/512,655.72
  6. Step 6: Final answer
    x = 676,067.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.