Home / 811,427.80-1,119,498.39-467,256.31

Finding the Fourth Proportional to 811,427.80, 1,119,498.39 and 467,256.31

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Solution

The fourth proportional to 811,427.80, 1,119,498.39 and 467,256.31 is: 644,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,427.80 : 1,119,498.39 = 467,256.31 : x
  2. Step 2: Convert to fraction form
    811,427.80/1,119,498.39 = 467,256.31/x
  3. Step 3: Cross multiply
    811,427.80x = 1,119,498.39 × 467,256.31
  4. Step 4: Simplify right side
    811,427.80x = 523,092,686,762.34
  5. Step 5: Solve for x
    x = 523,092,686,762.34/811,427.80
  6. Step 6: Final answer
    x = 644,657.09

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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.