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Finding the Fourth Proportional to 539,356.30, 743,991 and 348,482.23

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Solution

The fourth proportional to 539,356.30, 743,991 and 348,482.23 is: 480,698.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,356.30 : 743,991 = 348,482.23 : x
  2. Step 2: Convert to fraction form
    539,356.30/743,991 = 348,482.23/x
  3. Step 3: Cross multiply
    539,356.30x = 743,991 × 348,482.23
  4. Step 4: Simplify right side
    539,356.30x = 259,267,642,779.93
  5. Step 5: Solve for x
    x = 259,267,642,779.93/539,356.30
  6. Step 6: Final answer
    x = 480,698.27

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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.