Home / 817,719.12-1,226,133.48-285,096.96

Finding the Fourth Proportional to 817,719.12, 1,226,133.48 and 285,096.96

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Solution

The fourth proportional to 817,719.12, 1,226,133.48 and 285,096.96 is: 427,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,719.12 : 1,226,133.48 = 285,096.96 : x
  2. Step 2: Convert to fraction form
    817,719.12/1,226,133.48 = 285,096.96/x
  3. Step 3: Cross multiply
    817,719.12x = 1,226,133.48 × 285,096.96
  4. Step 4: Simplify right side
    817,719.12x = 349,566,927,702.22
  5. Step 5: Solve for x
    x = 349,566,927,702.22/817,719.12
  6. Step 6: Final answer
    x = 427,490.22

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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.