Home / 637,942.51-879,769.31-465,587.47

Finding the Fourth Proportional to 637,942.51, 879,769.31 and 465,587.47

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Solution

The fourth proportional to 637,942.51, 879,769.31 and 465,587.47 is: 642,079.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,942.51 : 879,769.31 = 465,587.47 : x
  2. Step 2: Convert to fraction form
    637,942.51/879,769.31 = 465,587.47/x
  3. Step 3: Cross multiply
    637,942.51x = 879,769.31 × 465,587.47
  4. Step 4: Simplify right side
    637,942.51x = 409,609,565,998.32
  5. Step 5: Solve for x
    x = 409,609,565,998.32/637,942.51
  6. Step 6: Final answer
    x = 642,079.12

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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.