Home / 749,619.40-1,124,817.90-328,937.80

Finding the Fourth Proportional to 749,619.40, 1,124,817.90 and 328,937.80

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Solution

The fourth proportional to 749,619.40, 1,124,817.90 and 328,937.80 is: 493,577.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,619.40 : 1,124,817.90 = 328,937.80 : x
  2. Step 2: Convert to fraction form
    749,619.40/1,124,817.90 = 328,937.80/x
  3. Step 3: Cross multiply
    749,619.40x = 1,124,817.90 × 328,937.80
  4. Step 4: Simplify right side
    749,619.40x = 369,995,125,426.62
  5. Step 5: Solve for x
    x = 369,995,125,426.62/749,619.40
  6. Step 6: Final answer
    x = 493,577.31

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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.