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Finding the Fourth Proportional to 909,098, 1,254,554.84 and 521,938.39

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Solution

The fourth proportional to 909,098, 1,254,554.84 and 521,938.39 is: 720,274.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,098 : 1,254,554.84 = 521,938.39 : x
  2. Step 2: Convert to fraction form
    909,098/1,254,554.84 = 521,938.39/x
  3. Step 3: Cross multiply
    909,098x = 1,254,554.84 × 521,938.39
  4. Step 4: Simplify right side
    909,098x = 654,800,327,083.53
  5. Step 5: Solve for x
    x = 654,800,327,083.53/909,098
  6. Step 6: Final answer
    x = 720,274.74

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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.