Home / 749,645.40-1,124,856.90-328,963.80

Finding the Fourth Proportional to 749,645.40, 1,124,856.90 and 328,963.80

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Solution

The fourth proportional to 749,645.40, 1,124,856.90 and 328,963.80 is: 493,616.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,645.40 : 1,124,856.90 = 328,963.80 : x
  2. Step 2: Convert to fraction form
    749,645.40/1,124,856.90 = 328,963.80/x
  3. Step 3: Cross multiply
    749,645.40x = 1,124,856.90 × 328,963.80
  4. Step 4: Simplify right side
    749,645.40x = 370,037,200,280.22
  5. Step 5: Solve for x
    x = 370,037,200,280.22/749,645.40
  6. Step 6: Final answer
    x = 493,616.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.