Home / 679,946.40-1,020,308.40-469,735.20

Finding the Fourth Proportional to 679,946.40, 1,020,308.40 and 469,735.20

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Solution

The fourth proportional to 679,946.40, 1,020,308.40 and 469,735.20 is: 704,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,946.40 : 1,020,308.40 = 469,735.20 : x
  2. Step 2: Convert to fraction form
    679,946.40/1,020,308.40 = 469,735.20/x
  3. Step 3: Cross multiply
    679,946.40x = 1,020,308.40 × 469,735.20
  4. Step 4: Simplify right side
    679,946.40x = 479,274,770,335.68
  5. Step 5: Solve for x
    x = 479,274,770,335.68/679,946.40
  6. Step 6: Final answer
    x = 704,871.40

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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.