Home / 1,316,657.25-1,974,986.69-319,385.25

Finding the Fourth Proportional to 1,316,657.25, 1,974,986.69 and 319,385.25

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Solution

The fourth proportional to 1,316,657.25, 1,974,986.69 and 319,385.25 is: 479,078.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,657.25 : 1,974,986.69 = 319,385.25 : x
  2. Step 2: Convert to fraction form
    1,316,657.25/1,974,986.69 = 319,385.25/x
  3. Step 3: Cross multiply
    1,316,657.25x = 1,974,986.69 × 319,385.25
  4. Step 4: Simplify right side
    1,316,657.25x = 630,781,616,135.40
  5. Step 5: Solve for x
    x = 630,781,616,135.40/1,316,657.25
  6. Step 6: Final answer
    x = 479,078.07

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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.