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Finding the Fourth Proportional to 688,482.45, 950,179.82 and 416,699.91

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Solution

The fourth proportional to 688,482.45, 950,179.82 and 416,699.91 is: 575,090.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,482.45 : 950,179.82 = 416,699.91 : x
  2. Step 2: Convert to fraction form
    688,482.45/950,179.82 = 416,699.91/x
  3. Step 3: Cross multiply
    688,482.45x = 950,179.82 × 416,699.91
  4. Step 4: Simplify right side
    688,482.45x = 395,939,843,394.32
  5. Step 5: Solve for x
    x = 395,939,843,394.32/688,482.45
  6. Step 6: Final answer
    x = 575,090.68

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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.