Home / 680,177.40-1,020,266.10-306,929.40

Finding the Fourth Proportional to 680,177.40, 1,020,266.10 and 306,929.40

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Solution

The fourth proportional to 680,177.40, 1,020,266.10 and 306,929.40 is: 460,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,177.40 : 1,020,266.10 = 306,929.40 : x
  2. Step 2: Convert to fraction form
    680,177.40/1,020,266.10 = 306,929.40/x
  3. Step 3: Cross multiply
    680,177.40x = 1,020,266.10 × 306,929.40
  4. Step 4: Simplify right side
    680,177.40x = 313,149,661,913.34
  5. Step 5: Solve for x
    x = 313,149,661,913.34/680,177.40
  6. Step 6: Final answer
    x = 460,394.10

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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.