Home / 927,749.48-1,280,299.20-519,852.20

Finding the Fourth Proportional to 927,749.48, 1,280,299.20 and 519,852.20

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Solution

The fourth proportional to 927,749.48, 1,280,299.20 and 519,852.20 is: 717,398.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,749.48 : 1,280,299.20 = 519,852.20 : x
  2. Step 2: Convert to fraction form
    927,749.48/1,280,299.20 = 519,852.20/x
  3. Step 3: Cross multiply
    927,749.48x = 1,280,299.20 × 519,852.20
  4. Step 4: Simplify right side
    927,749.48x = 665,566,355,778.24
  5. Step 5: Solve for x
    x = 665,566,355,778.24/927,749.48
  6. Step 6: Final answer
    x = 717,398.79

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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.