Home / 632,427.98-872,739.15-345,945.56

Finding the Fourth Proportional to 632,427.98, 872,739.15 and 345,945.56

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Solution

The fourth proportional to 632,427.98, 872,739.15 and 345,945.56 is: 477,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,427.98 : 872,739.15 = 345,945.56 : x
  2. Step 2: Convert to fraction form
    632,427.98/872,739.15 = 345,945.56/x
  3. Step 3: Cross multiply
    632,427.98x = 872,739.15 × 345,945.56
  4. Step 4: Simplify right side
    632,427.98x = 301,920,233,980.67
  5. Step 5: Solve for x
    x = 301,920,233,980.67/632,427.98
  6. Step 6: Final answer
    x = 477,398.60

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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.