Home / 790,577.76-1,090,995.96-428,001.48

Finding the Fourth Proportional to 790,577.76, 1,090,995.96 and 428,001.48

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Solution

The fourth proportional to 790,577.76, 1,090,995.96 and 428,001.48 is: 590,641.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,577.76 : 1,090,995.96 = 428,001.48 : x
  2. Step 2: Convert to fraction form
    790,577.76/1,090,995.96 = 428,001.48/x
  3. Step 3: Cross multiply
    790,577.76x = 1,090,995.96 × 428,001.48
  4. Step 4: Simplify right side
    790,577.76x = 466,947,885,554.02
  5. Step 5: Solve for x
    x = 466,947,885,554.02/790,577.76
  6. Step 6: Final answer
    x = 590,641.31

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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.