Home / 939,478.17-1,409,392.80-427,180.93

Finding the Fourth Proportional to 939,478.17, 1,409,392.80 and 427,180.93

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Solution

The fourth proportional to 939,478.17, 1,409,392.80 and 427,180.93 is: 640,851.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,478.17 : 1,409,392.80 = 427,180.93 : x
  2. Step 2: Convert to fraction form
    939,478.17/1,409,392.80 = 427,180.93/x
  3. Step 3: Cross multiply
    939,478.17x = 1,409,392.80 × 427,180.93
  4. Step 4: Simplify right side
    939,478.17x = 602,065,727,039.30
  5. Step 5: Solve for x
    x = 602,065,727,039.30/939,478.17
  6. Step 6: Final answer
    x = 640,851.22

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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.