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Finding the Fourth Proportional to 672,307.40, 941,930.20 and 672,307.40

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Solution

The fourth proportional to 672,307.40, 941,930.20 and 672,307.40 is: 941,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,307.40 : 941,930.20 = 672,307.40 : x
  2. Step 2: Convert to fraction form
    672,307.40/941,930.20 = 672,307.40/x
  3. Step 3: Cross multiply
    672,307.40x = 941,930.20 × 672,307.40
  4. Step 4: Simplify right side
    672,307.40x = 633,266,643,743.48
  5. Step 5: Solve for x
    x = 633,266,643,743.48/672,307.40
  6. Step 6: Final answer
    x = 941,930.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.