Home / 858,360.20-1,287,713.10-297,278.60

Finding the Fourth Proportional to 858,360.20, 1,287,713.10 and 297,278.60

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Solution

The fourth proportional to 858,360.20, 1,287,713.10 and 297,278.60 is: 445,977.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,360.20 : 1,287,713.10 = 297,278.60 : x
  2. Step 2: Convert to fraction form
    858,360.20/1,287,713.10 = 297,278.60/x
  3. Step 3: Cross multiply
    858,360.20x = 1,287,713.10 × 297,278.60
  4. Step 4: Simplify right side
    858,360.20x = 382,809,547,569.66
  5. Step 5: Solve for x
    x = 382,809,547,569.66/858,360.20
  6. Step 6: Final answer
    x = 445,977.75

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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.