Home / 688,369.86-949,619.28-446,728.23

Finding the Fourth Proportional to 688,369.86, 949,619.28 and 446,728.23

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Solution

The fourth proportional to 688,369.86, 949,619.28 and 446,728.23 is: 616,270.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,369.86 : 949,619.28 = 446,728.23 : x
  2. Step 2: Convert to fraction form
    688,369.86/949,619.28 = 446,728.23/x
  3. Step 3: Cross multiply
    688,369.86x = 949,619.28 × 446,728.23
  4. Step 4: Simplify right side
    688,369.86x = 424,221,740,128.27
  5. Step 5: Solve for x
    x = 424,221,740,128.27/688,369.86
  6. Step 6: Final answer
    x = 616,270.07

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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.