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Finding the Fourth Proportional to 909,916, 1,255,684.08 and 507,508

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Solution

The fourth proportional to 909,916, 1,255,684.08 and 507,508 is: 700,361.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,916 : 1,255,684.08 = 507,508 : x
  2. Step 2: Convert to fraction form
    909,916/1,255,684.08 = 507,508/x
  3. Step 3: Cross multiply
    909,916x = 1,255,684.08 × 507,508
  4. Step 4: Simplify right side
    909,916x = 637,269,716,072.64
  5. Step 5: Solve for x
    x = 637,269,716,072.64/909,916
  6. Step 6: Final answer
    x = 700,361.04

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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.