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Finding the Fourth Proportional to 660,254.20, 992,495.40 and 613,452.40

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Solution

The fourth proportional to 660,254.20, 992,495.40 and 613,452.40 is: 922,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,254.20 : 992,495.40 = 613,452.40 : x
  2. Step 2: Convert to fraction form
    660,254.20/992,495.40 = 613,452.40/x
  3. Step 3: Cross multiply
    660,254.20x = 992,495.40 × 613,452.40
  4. Step 4: Simplify right side
    660,254.20x = 608,848,685,118.96
  5. Step 5: Solve for x
    x = 608,848,685,118.96/660,254.20
  6. Step 6: Final answer
    x = 922,142.84

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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.