Home / 823,807.20-1,234,328.40-402,175.20

Finding the Fourth Proportional to 823,807.20, 1,234,328.40 and 402,175.20

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Solution

The fourth proportional to 823,807.20, 1,234,328.40 and 402,175.20 is: 602,587.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,807.20 : 1,234,328.40 = 402,175.20 : x
  2. Step 2: Convert to fraction form
    823,807.20/1,234,328.40 = 402,175.20/x
  3. Step 3: Cross multiply
    823,807.20x = 1,234,328.40 × 402,175.20
  4. Step 4: Simplify right side
    823,807.20x = 496,416,271,135.68
  5. Step 5: Solve for x
    x = 496,416,271,135.68/823,807.20
  6. Step 6: Final answer
    x = 602,587.92

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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.