Home / 902,397.28-1,351,756.08-427,642.72

Finding the Fourth Proportional to 902,397.28, 1,351,756.08 and 427,642.72

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Solution

The fourth proportional to 902,397.28, 1,351,756.08 and 427,642.72 is: 640,592.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,397.28 : 1,351,756.08 = 427,642.72 : x
  2. Step 2: Convert to fraction form
    902,397.28/1,351,756.08 = 427,642.72/x
  3. Step 3: Cross multiply
    902,397.28x = 1,351,756.08 × 427,642.72
  4. Step 4: Simplify right side
    902,397.28x = 578,068,646,827.74
  5. Step 5: Solve for x
    x = 578,068,646,827.74/902,397.28
  6. Step 6: Final answer
    x = 640,592.19

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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.