Home / 688,927.30-950,665.84-382,985.06

Finding the Fourth Proportional to 688,927.30, 950,665.84 and 382,985.06

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Solution

The fourth proportional to 688,927.30, 950,665.84 and 382,985.06 is: 528,489.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,927.30 : 950,665.84 = 382,985.06 : x
  2. Step 2: Convert to fraction form
    688,927.30/950,665.84 = 382,985.06/x
  3. Step 3: Cross multiply
    688,927.30x = 950,665.84 × 382,985.06
  4. Step 4: Simplify right side
    688,927.30x = 364,090,815,191.55
  5. Step 5: Solve for x
    x = 364,090,815,191.55/688,927.30
  6. Step 6: Final answer
    x = 528,489.46

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Half scale
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Double scale
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Similar ratio
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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.