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Finding the Fourth Proportional to 383,319.84, 572,284.56 and 292,889.28

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Solution

The fourth proportional to 383,319.84, 572,284.56 and 292,889.28 is: 437,274.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,319.84 : 572,284.56 = 292,889.28 : x
  2. Step 2: Convert to fraction form
    383,319.84/572,284.56 = 292,889.28/x
  3. Step 3: Cross multiply
    383,319.84x = 572,284.56 × 292,889.28
  4. Step 4: Simplify right side
    383,319.84x = 167,616,012,733.52
  5. Step 5: Solve for x
    x = 167,616,012,733.52/383,319.84
  6. Step 6: Final answer
    x = 437,274.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.