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Finding the Fourth Proportional to 688,253.12, 949,762.87 and 382,348.72

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Solution

The fourth proportional to 688,253.12, 949,762.87 and 382,348.72 is: 527,626.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,253.12 : 949,762.87 = 382,348.72 : x
  2. Step 2: Convert to fraction form
    688,253.12/949,762.87 = 382,348.72/x
  3. Step 3: Cross multiply
    688,253.12x = 949,762.87 × 382,348.72
  4. Step 4: Simplify right side
    688,253.12x = 363,140,617,879.36
  5. Step 5: Solve for x
    x = 363,140,617,879.36/688,253.12
  6. Step 6: Final answer
    x = 527,626.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.