Home / 824,858.40-1,235,732.40-424,135.20

Finding the Fourth Proportional to 824,858.40, 1,235,732.40 and 424,135.20

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Solution

The fourth proportional to 824,858.40, 1,235,732.40 and 424,135.20 is: 635,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,858.40 : 1,235,732.40 = 424,135.20 : x
  2. Step 2: Convert to fraction form
    824,858.40/1,235,732.40 = 424,135.20/x
  3. Step 3: Cross multiply
    824,858.40x = 1,235,732.40 × 424,135.20
  4. Step 4: Simplify right side
    824,858.40x = 524,117,608,620.48
  5. Step 5: Solve for x
    x = 524,117,608,620.48/824,858.40
  6. Step 6: Final answer
    x = 635,403.13

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1.5x scale

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.