Home / 1,028,402.51-1,542,849.80-429,030.54

Finding the Fourth Proportional to 1,028,402.51, 1,542,849.80 and 429,030.54

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Solution

The fourth proportional to 1,028,402.51, 1,542,849.80 and 429,030.54 is: 643,648.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,402.51 : 1,542,849.80 = 429,030.54 : x
  2. Step 2: Convert to fraction form
    1,028,402.51/1,542,849.80 = 429,030.54/x
  3. Step 3: Cross multiply
    1,028,402.51x = 1,542,849.80 × 429,030.54
  4. Step 4: Simplify right side
    1,028,402.51x = 661,929,680,687.74
  5. Step 5: Solve for x
    x = 661,929,680,687.74/1,028,402.51
  6. Step 6: Final answer
    x = 643,648.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.