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Finding the Fourth Proportional to 680,496.59, 939,088.69 and 374,603.74

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Solution

The fourth proportional to 680,496.59, 939,088.69 and 374,603.74 is: 516,955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,496.59 : 939,088.69 = 374,603.74 : x
  2. Step 2: Convert to fraction form
    680,496.59/939,088.69 = 374,603.74/x
  3. Step 3: Cross multiply
    680,496.59x = 939,088.69 × 374,603.74
  4. Step 4: Simplify right side
    680,496.59x = 351,786,132,181.47
  5. Step 5: Solve for x
    x = 351,786,132,181.47/680,496.59
  6. Step 6: Final answer
    x = 516,955.02

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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.