Home / 761,654.89-1,051,504.90-680,888.98

Finding the Fourth Proportional to 761,654.89, 1,051,504.90 and 680,888.98

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Solution

The fourth proportional to 761,654.89, 1,051,504.90 and 680,888.98 is: 940,003.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,654.89 : 1,051,504.90 = 680,888.98 : x
  2. Step 2: Convert to fraction form
    761,654.89/1,051,504.90 = 680,888.98/x
  3. Step 3: Cross multiply
    761,654.89x = 1,051,504.90 × 680,888.98
  4. Step 4: Simplify right side
    761,654.89x = 715,958,094,495.02
  5. Step 5: Solve for x
    x = 715,958,094,495.02/761,654.89
  6. Step 6: Final answer
    x = 940,003.28

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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.