Home / 845,490.72-1,166,763.76-463,520.12

Finding the Fourth Proportional to 845,490.72, 1,166,763.76 and 463,520.12

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Solution

The fourth proportional to 845,490.72, 1,166,763.76 and 463,520.12 is: 639,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,490.72 : 1,166,763.76 = 463,520.12 : x
  2. Step 2: Convert to fraction form
    845,490.72/1,166,763.76 = 463,520.12/x
  3. Step 3: Cross multiply
    845,490.72x = 1,166,763.76 × 463,520.12
  4. Step 4: Simplify right side
    845,490.72x = 540,818,478,046.85
  5. Step 5: Solve for x
    x = 540,818,478,046.85/845,490.72
  6. Step 6: Final answer
    x = 639,650.40

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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.