Home / 528,984.27-730,221.78-357,135.02

Finding the Fourth Proportional to 528,984.27, 730,221.78 and 357,135.02

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Solution

The fourth proportional to 528,984.27, 730,221.78 and 357,135.02 is: 492,997.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,984.27 : 730,221.78 = 357,135.02 : x
  2. Step 2: Convert to fraction form
    528,984.27/730,221.78 = 357,135.02/x
  3. Step 3: Cross multiply
    528,984.27x = 730,221.78 × 357,135.02
  4. Step 4: Simplify right side
    528,984.27x = 260,787,769,968.25
  5. Step 5: Solve for x
    x = 260,787,769,968.25/528,984.27
  6. Step 6: Final answer
    x = 492,997.21

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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.