Home / 674,464.74-1,012,417.33-290,403.64

Finding the Fourth Proportional to 674,464.74, 1,012,417.33 and 290,403.64

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Solution

The fourth proportional to 674,464.74, 1,012,417.33 and 290,403.64 is: 435,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,464.74 : 1,012,417.33 = 290,403.64 : x
  2. Step 2: Convert to fraction form
    674,464.74/1,012,417.33 = 290,403.64/x
  3. Step 3: Cross multiply
    674,464.74x = 1,012,417.33 × 290,403.64
  4. Step 4: Simplify right side
    674,464.74x = 294,009,677,831.08
  5. Step 5: Solve for x
    x = 294,009,677,831.08/674,464.74
  6. Step 6: Final answer
    x = 435,915.56

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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.