Home / 771,443.59-1,157,350.14-321,914.40

Finding the Fourth Proportional to 771,443.59, 1,157,350.14 and 321,914.40

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Solution

The fourth proportional to 771,443.59, 1,157,350.14 and 321,914.40 is: 482,948.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,443.59 : 1,157,350.14 = 321,914.40 : x
  2. Step 2: Convert to fraction form
    771,443.59/1,157,350.14 = 321,914.40/x
  3. Step 3: Cross multiply
    771,443.59x = 1,157,350.14 × 321,914.40
  4. Step 4: Simplify right side
    771,443.59x = 372,567,671,567.95
  5. Step 5: Solve for x
    x = 372,567,671,567.95/771,443.59
  6. Step 6: Final answer
    x = 482,948.69

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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.