Home / 912,021.20-1,368,031.80-817,542.80

Finding the Fourth Proportional to 912,021.20, 1,368,031.80 and 817,542.80

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Solution

The fourth proportional to 912,021.20, 1,368,031.80 and 817,542.80 is: 1,226,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,021.20 : 1,368,031.80 = 817,542.80 : x
  2. Step 2: Convert to fraction form
    912,021.20/1,368,031.80 = 817,542.80/x
  3. Step 3: Cross multiply
    912,021.20x = 1,368,031.80 × 817,542.80
  4. Step 4: Simplify right side
    912,021.20x = 1,118,424,548,261.04
  5. Step 5: Solve for x
    x = 1,118,424,548,261.04/912,021.20
  6. Step 6: Final answer
    x = 1,226,314.20

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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.