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Finding the Fourth Proportional to 611,155.92, 916,719.48 and 360,029.04

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Solution

The fourth proportional to 611,155.92, 916,719.48 and 360,029.04 is: 540,035.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,155.92 : 916,719.48 = 360,029.04 : x
  2. Step 2: Convert to fraction form
    611,155.92/916,719.48 = 360,029.04/x
  3. Step 3: Cross multiply
    611,155.92x = 916,719.48 × 360,029.04
  4. Step 4: Simplify right side
    611,155.92x = 330,045,634,333.70
  5. Step 5: Solve for x
    x = 330,045,634,333.70/611,155.92
  6. Step 6: Final answer
    x = 540,035.08

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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.