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Finding the Fourth Proportional to 647,547.20, 971,320.80 and 362,945.60

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Solution

The fourth proportional to 647,547.20, 971,320.80 and 362,945.60 is: 544,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,547.20 : 971,320.80 = 362,945.60 : x
  2. Step 2: Convert to fraction form
    647,547.20/971,320.80 = 362,945.60/x
  3. Step 3: Cross multiply
    647,547.20x = 971,320.80 × 362,945.60
  4. Step 4: Simplify right side
    647,547.20x = 352,536,610,548.48
  5. Step 5: Solve for x
    x = 352,536,610,548.48/647,547.20
  6. Step 6: Final answer
    x = 544,418.40

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Similar ratio
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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.