Home / 658,824.39-909,178.70-357,018.39

Finding the Fourth Proportional to 658,824.39, 909,178.70 and 357,018.39

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Solution

The fourth proportional to 658,824.39, 909,178.70 and 357,018.39 is: 492,685.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,824.39 : 909,178.70 = 357,018.39 : x
  2. Step 2: Convert to fraction form
    658,824.39/909,178.70 = 357,018.39/x
  3. Step 3: Cross multiply
    658,824.39x = 909,178.70 × 357,018.39
  4. Step 4: Simplify right side
    658,824.39x = 324,593,513,911.20
  5. Step 5: Solve for x
    x = 324,593,513,911.20/658,824.39
  6. Step 6: Final answer
    x = 492,685.94

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Double scale
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Similar ratio
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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.