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Finding the Fourth Proportional to 647,851.20, 972,214.20 and 363,541.20

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Solution

The fourth proportional to 647,851.20, 972,214.20 and 363,541.20 is: 545,557.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,851.20 : 972,214.20 = 363,541.20 : x
  2. Step 2: Convert to fraction form
    647,851.20/972,214.20 = 363,541.20/x
  3. Step 3: Cross multiply
    647,851.20x = 972,214.20 × 363,541.20
  4. Step 4: Simplify right side
    647,851.20x = 353,439,916,925.04
  5. Step 5: Solve for x
    x = 353,439,916,925.04/647,851.20
  6. Step 6: Final answer
    x = 545,557.25

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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.