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Finding the Fourth Proportional to 440,998.83, 660,665.81 and 260,545.82

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Solution

The fourth proportional to 440,998.83, 660,665.81 and 260,545.82 is: 390,326.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,998.83 : 660,665.81 = 260,545.82 : x
  2. Step 2: Convert to fraction form
    440,998.83/660,665.81 = 260,545.82/x
  3. Step 3: Cross multiply
    440,998.83x = 660,665.81 × 260,545.82
  4. Step 4: Simplify right side
    440,998.83x = 172,133,715,212.41
  5. Step 5: Solve for x
    x = 172,133,715,212.41/440,998.83
  6. Step 6: Final answer
    x = 390,326.92

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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.