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Finding the Fourth Proportional to 580,649.34, 801,308.76 and 319,008.02

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Solution

The fourth proportional to 580,649.34, 801,308.76 and 319,008.02 is: 440,238.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,649.34 : 801,308.76 = 319,008.02 : x
  2. Step 2: Convert to fraction form
    580,649.34/801,308.76 = 319,008.02/x
  3. Step 3: Cross multiply
    580,649.34x = 801,308.76 × 319,008.02
  4. Step 4: Simplify right side
    580,649.34x = 255,623,920,936.26
  5. Step 5: Solve for x
    x = 255,623,920,936.26/580,649.34
  6. Step 6: Final answer
    x = 440,238.03

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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.