Home / 909,138.75-1,254,759.49-546,928.82

Finding the Fourth Proportional to 909,138.75, 1,254,759.49 and 546,928.82

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Solution

The fourth proportional to 909,138.75, 1,254,759.49 and 546,928.82 is: 754,850.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,138.75 : 1,254,759.49 = 546,928.82 : x
  2. Step 2: Convert to fraction form
    909,138.75/1,254,759.49 = 546,928.82/x
  3. Step 3: Cross multiply
    909,138.75x = 1,254,759.49 × 546,928.82
  4. Step 4: Simplify right side
    909,138.75x = 686,264,127,249.50
  5. Step 5: Solve for x
    x = 686,264,127,249.50/909,138.75
  6. Step 6: Final answer
    x = 754,850.82

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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.