Home / 1,316,909.73-1,975,350.20-319,637.73

Finding the Fourth Proportional to 1,316,909.73, 1,975,350.20 and 319,637.73

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Solution

The fourth proportional to 1,316,909.73, 1,975,350.20 and 319,637.73 is: 479,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,909.73 : 1,975,350.20 = 319,637.73 : x
  2. Step 2: Convert to fraction form
    1,316,909.73/1,975,350.20 = 319,637.73/x
  3. Step 3: Cross multiply
    1,316,909.73x = 1,975,350.20 × 319,637.73
  4. Step 4: Simplify right side
    1,316,909.73x = 631,396,452,284.86
  5. Step 5: Solve for x
    x = 631,396,452,284.86/1,316,909.73
  6. Step 6: Final answer
    x = 479,453.10

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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.