Home / 522,938.51-721,656.65-290,365.96

Finding the Fourth Proportional to 522,938.51, 721,656.65 and 290,365.96

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Solution

The fourth proportional to 522,938.51, 721,656.65 and 290,365.96 is: 400,705.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,938.51 : 721,656.65 = 290,365.96 : x
  2. Step 2: Convert to fraction form
    522,938.51/721,656.65 = 290,365.96/x
  3. Step 3: Cross multiply
    522,938.51x = 721,656.65 × 290,365.96
  4. Step 4: Simplify right side
    522,938.51x = 209,544,522,711.66
  5. Step 5: Solve for x
    x = 209,544,522,711.66/522,938.51
  6. Step 6: Final answer
    x = 400,705.85

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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.