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Finding the Fourth Proportional to 685,892.67, 946,860.08 and 456,831.15

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Solution

The fourth proportional to 685,892.67, 946,860.08 and 456,831.15 is: 630,645.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,892.67 : 946,860.08 = 456,831.15 : x
  2. Step 2: Convert to fraction form
    685,892.67/946,860.08 = 456,831.15/x
  3. Step 3: Cross multiply
    685,892.67x = 946,860.08 × 456,831.15
  4. Step 4: Simplify right side
    685,892.67x = 432,555,176,951.34
  5. Step 5: Solve for x
    x = 432,555,176,951.34/685,892.67
  6. Step 6: Final answer
    x = 630,645.57

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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.