Home / 755,643.75-1,133,908.47-542,181.60

Finding the Fourth Proportional to 755,643.75, 1,133,908.47 and 542,181.60

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Solution

The fourth proportional to 755,643.75, 1,133,908.47 and 542,181.60 is: 813,590.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,643.75 : 1,133,908.47 = 542,181.60 : x
  2. Step 2: Convert to fraction form
    755,643.75/1,133,908.47 = 542,181.60/x
  3. Step 3: Cross multiply
    755,643.75x = 1,133,908.47 × 542,181.60
  4. Step 4: Simplify right side
    755,643.75x = 614,784,308,518.15
  5. Step 5: Solve for x
    x = 614,784,308,518.15/755,643.75
  6. Step 6: Final answer
    x = 813,590.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.