Home / 847,266.90-1,270,499.40-492,389.70

Finding the Fourth Proportional to 847,266.90, 1,270,499.40 and 492,389.70

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Solution

The fourth proportional to 847,266.90, 1,270,499.40 and 492,389.70 is: 738,351.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,266.90 : 1,270,499.40 = 492,389.70 : x
  2. Step 2: Convert to fraction form
    847,266.90/1,270,499.40 = 492,389.70/x
  3. Step 3: Cross multiply
    847,266.90x = 1,270,499.40 × 492,389.70
  4. Step 4: Simplify right side
    847,266.90x = 625,580,818,416.18
  5. Step 5: Solve for x
    x = 625,580,818,416.18/847,266.90
  6. Step 6: Final answer
    x = 738,351.54

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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.