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Finding the Fourth Proportional to 632,453.80, 872,779.16 and 345,970.48

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Solution

The fourth proportional to 632,453.80, 872,779.16 and 345,970.48 is: 477,435.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,453.80 : 872,779.16 = 345,970.48 : x
  2. Step 2: Convert to fraction form
    632,453.80/872,779.16 = 345,970.48/x
  3. Step 3: Cross multiply
    632,453.80x = 872,779.16 × 345,970.48
  4. Step 4: Simplify right side
    632,453.80x = 301,955,824,919.20
  5. Step 5: Solve for x
    x = 301,955,824,919.20/632,453.80
  6. Step 6: Final answer
    x = 477,435.39

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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.