Home / 812,910.32-1,122,363.72-507,451.76

Finding the Fourth Proportional to 812,910.32, 1,122,363.72 and 507,451.76

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Solution

The fourth proportional to 812,910.32, 1,122,363.72 and 507,451.76 is: 700,625.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,910.32 : 1,122,363.72 = 507,451.76 : x
  2. Step 2: Convert to fraction form
    812,910.32/1,122,363.72 = 507,451.76/x
  3. Step 3: Cross multiply
    812,910.32x = 1,122,363.72 × 507,451.76
  4. Step 4: Simplify right side
    812,910.32x = 569,545,445,074.15
  5. Step 5: Solve for x
    x = 569,545,445,074.15/812,910.32
  6. Step 6: Final answer
    x = 700,625.19

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Double scale
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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.