Home / 971,330.40-1,456,606.80-339,919.20

Finding the Fourth Proportional to 971,330.40, 1,456,606.80 and 339,919.20

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Solution

The fourth proportional to 971,330.40, 1,456,606.80 and 339,919.20 is: 509,742.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,330.40 : 1,456,606.80 = 339,919.20 : x
  2. Step 2: Convert to fraction form
    971,330.40/1,456,606.80 = 339,919.20/x
  3. Step 3: Cross multiply
    971,330.40x = 1,456,606.80 × 339,919.20
  4. Step 4: Simplify right side
    971,330.40x = 495,128,618,170.56
  5. Step 5: Solve for x
    x = 495,128,618,170.56/971,330.40
  6. Step 6: Final answer
    x = 509,742.74

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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.