Home / 840,451.61-1,159,820.82-458,475.66

Finding the Fourth Proportional to 840,451.61, 1,159,820.82 and 458,475.66

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Solution

The fourth proportional to 840,451.61, 1,159,820.82 and 458,475.66 is: 632,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,451.61 : 1,159,820.82 = 458,475.66 : x
  2. Step 2: Convert to fraction form
    840,451.61/1,159,820.82 = 458,475.66/x
  3. Step 3: Cross multiply
    840,451.61x = 1,159,820.82 × 458,475.66
  4. Step 4: Simplify right side
    840,451.61x = 531,749,615,931.24
  5. Step 5: Solve for x
    x = 531,749,615,931.24/840,451.61
  6. Step 6: Final answer
    x = 632,695.10

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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.