Home / 749,697.92-1,124,421.60-328,860.80

Finding the Fourth Proportional to 749,697.92, 1,124,421.60 and 328,860.80

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Solution

The fourth proportional to 749,697.92, 1,124,421.60 and 328,860.80 is: 493,236.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,697.92 : 1,124,421.60 = 328,860.80 : x
  2. Step 2: Convert to fraction form
    749,697.92/1,124,421.60 = 328,860.80/x
  3. Step 3: Cross multiply
    749,697.92x = 1,124,421.60 × 328,860.80
  4. Step 4: Simplify right side
    749,697.92x = 369,778,186,913.28
  5. Step 5: Solve for x
    x = 369,778,186,913.28/749,697.92
  6. Step 6: Final answer
    x = 493,236.24

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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.