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Finding the Fourth Proportional to 669,710.08, 923,831.80 and 424,245.30

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Solution

The fourth proportional to 669,710.08, 923,831.80 and 424,245.30 is: 585,225.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,710.08 : 923,831.80 = 424,245.30 : x
  2. Step 2: Convert to fraction form
    669,710.08/923,831.80 = 424,245.30/x
  3. Step 3: Cross multiply
    669,710.08x = 923,831.80 × 424,245.30
  4. Step 4: Simplify right side
    669,710.08x = 391,931,294,615.56
  5. Step 5: Solve for x
    x = 391,931,294,615.56/669,710.08
  6. Step 6: Final answer
    x = 585,225.32

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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.