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Finding the Fourth Proportional to 888,809.32, 1,226,587.62 and 486,401.32

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Solution

The fourth proportional to 888,809.32, 1,226,587.62 and 486,401.32 is: 671,250.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,809.32 : 1,226,587.62 = 486,401.32 : x
  2. Step 2: Convert to fraction form
    888,809.32/1,226,587.62 = 486,401.32/x
  3. Step 3: Cross multiply
    888,809.32x = 1,226,587.62 × 486,401.32
  4. Step 4: Simplify right side
    888,809.32x = 596,613,837,463.66
  5. Step 5: Solve for x
    x = 596,613,837,463.66/888,809.32
  6. Step 6: Final answer
    x = 671,250.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.