Home / 1,117,668.40-1,676,567.40-319,008.40

Finding the Fourth Proportional to 1,117,668.40, 1,676,567.40 and 319,008.40

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Solution

The fourth proportional to 1,117,668.40, 1,676,567.40 and 319,008.40 is: 478,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,668.40 : 1,676,567.40 = 319,008.40 : x
  2. Step 2: Convert to fraction form
    1,117,668.40/1,676,567.40 = 319,008.40/x
  3. Step 3: Cross multiply
    1,117,668.40x = 1,676,567.40 × 319,008.40
  4. Step 4: Simplify right side
    1,117,668.40x = 534,839,083,766.16
  5. Step 5: Solve for x
    x = 534,839,083,766.16/1,117,668.40
  6. Step 6: Final answer
    x = 478,531.10

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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.