Home / 497,795.06-687,009.80-304,316.04

Finding the Fourth Proportional to 497,795.06, 687,009.80 and 304,316.04

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Solution

The fourth proportional to 497,795.06, 687,009.80 and 304,316.04 is: 419,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,795.06 : 687,009.80 = 304,316.04 : x
  2. Step 2: Convert to fraction form
    497,795.06/687,009.80 = 304,316.04/x
  3. Step 3: Cross multiply
    497,795.06x = 687,009.80 × 304,316.04
  4. Step 4: Simplify right side
    497,795.06x = 209,068,101,777.19
  5. Step 5: Solve for x
    x = 209,068,101,777.19/497,795.06
  6. Step 6: Final answer
    x = 419,988.30

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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.