Home / 885,809.90-1,328,455.65-317,125.10

Finding the Fourth Proportional to 885,809.90, 1,328,455.65 and 317,125.10

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Solution

The fourth proportional to 885,809.90, 1,328,455.65 and 317,125.10 is: 475,594.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,809.90 : 1,328,455.65 = 317,125.10 : x
  2. Step 2: Convert to fraction form
    885,809.90/1,328,455.65 = 317,125.10/x
  3. Step 3: Cross multiply
    885,809.90x = 1,328,455.65 × 317,125.10
  4. Step 4: Simplify right side
    885,809.90x = 421,286,630,851.82
  5. Step 5: Solve for x
    x = 421,286,630,851.82/885,809.90
  6. Step 6: Final answer
    x = 475,594.85

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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.