Home / 790,649.55-1,091,083.08-428,070.48

Finding the Fourth Proportional to 790,649.55, 1,091,083.08 and 428,070.48

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Solution

The fourth proportional to 790,649.55, 1,091,083.08 and 428,070.48 is: 590,730.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,649.55 : 1,091,083.08 = 428,070.48 : x
  2. Step 2: Convert to fraction form
    790,649.55/1,091,083.08 = 428,070.48/x
  3. Step 3: Cross multiply
    790,649.55x = 1,091,083.08 × 428,070.48
  4. Step 4: Simplify right side
    790,649.55x = 467,060,457,775.48
  5. Step 5: Solve for x
    x = 467,060,457,775.48/790,649.55
  6. Step 6: Final answer
    x = 590,730.06

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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.