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Finding the Fourth Proportional to 910,167, 1,256,031 and 507,759

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Solution

The fourth proportional to 910,167, 1,256,031 and 507,759 is: 700,707.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,167 : 1,256,031 = 507,759 : x
  2. Step 2: Convert to fraction form
    910,167/1,256,031 = 507,759/x
  3. Step 3: Cross multiply
    910,167x = 1,256,031 × 507,759
  4. Step 4: Simplify right side
    910,167x = 637,761,044,529
  5. Step 5: Solve for x
    x = 637,761,044,529/910,167
  6. Step 6: Final answer
    x = 700,707.72

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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.