Home / 860,127.64-1,290,209.18-313,001.32

Finding the Fourth Proportional to 860,127.64, 1,290,209.18 and 313,001.32

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Solution

The fourth proportional to 860,127.64, 1,290,209.18 and 313,001.32 is: 469,508.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,127.64 : 1,290,209.18 = 313,001.32 : x
  2. Step 2: Convert to fraction form
    860,127.64/1,290,209.18 = 313,001.32/x
  3. Step 3: Cross multiply
    860,127.64x = 1,290,209.18 × 313,001.32
  4. Step 4: Simplify right side
    860,127.64x = 403,837,176,416.12
  5. Step 5: Solve for x
    x = 403,837,176,416.12/860,127.64
  6. Step 6: Final answer
    x = 469,508.43

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1.5x scale

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.