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Finding the Fourth Proportional to 688,830.38, 950,597.38 and 378,746.06

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Solution

The fourth proportional to 688,830.38, 950,597.38 and 378,746.06 is: 522,675.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,830.38 : 950,597.38 = 378,746.06 : x
  2. Step 2: Convert to fraction form
    688,830.38/950,597.38 = 378,746.06/x
  3. Step 3: Cross multiply
    688,830.38x = 950,597.38 × 378,746.06
  4. Step 4: Simplify right side
    688,830.38x = 360,035,012,321.32
  5. Step 5: Solve for x
    x = 360,035,012,321.32/688,830.38
  6. Step 6: Final answer
    x = 522,675.86

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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.