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Finding the Fourth Proportional to 692,315.08, 955,448.38 and 382,278.20

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Solution

The fourth proportional to 692,315.08, 955,448.38 and 382,278.20 is: 527,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,315.08 : 955,448.38 = 382,278.20 : x
  2. Step 2: Convert to fraction form
    692,315.08/955,448.38 = 382,278.20/x
  3. Step 3: Cross multiply
    692,315.08x = 955,448.38 × 382,278.20
  4. Step 4: Simplify right side
    692,315.08x = 365,247,086,899.32
  5. Step 5: Solve for x
    x = 365,247,086,899.32/692,315.08
  6. Step 6: Final answer
    x = 527,573.50

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Double scale
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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.