Home / 771,444.59-1,157,351.64-321,915.40

Finding the Fourth Proportional to 771,444.59, 1,157,351.64 and 321,915.40

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Solution

The fourth proportional to 771,444.59, 1,157,351.64 and 321,915.40 is: 482,950.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,444.59 : 1,157,351.64 = 321,915.40 : x
  2. Step 2: Convert to fraction form
    771,444.59/1,157,351.64 = 321,915.40/x
  3. Step 3: Cross multiply
    771,444.59x = 1,157,351.64 × 321,915.40
  4. Step 4: Simplify right side
    771,444.59x = 372,569,310,344.50
  5. Step 5: Solve for x
    x = 372,569,310,344.50/771,444.59
  6. Step 6: Final answer
    x = 482,950.19

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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.