Home / 755,327.80-1,042,117.14-428,586.76

Finding the Fourth Proportional to 755,327.80, 1,042,117.14 and 428,586.76

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Solution

The fourth proportional to 755,327.80, 1,042,117.14 and 428,586.76 is: 591,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,327.80 : 1,042,117.14 = 428,586.76 : x
  2. Step 2: Convert to fraction form
    755,327.80/1,042,117.14 = 428,586.76/x
  3. Step 3: Cross multiply
    755,327.80x = 1,042,117.14 × 428,586.76
  4. Step 4: Simplify right side
    755,327.80x = 446,637,608,573.07
  5. Step 5: Solve for x
    x = 446,637,608,573.07/755,327.80
  6. Step 6: Final answer
    x = 591,316.26

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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.