Home / 1,052,545.92-1,578,731.40-421,494.36

Finding the Fourth Proportional to 1,052,545.92, 1,578,731.40 and 421,494.36

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Solution

The fourth proportional to 1,052,545.92, 1,578,731.40 and 421,494.36 is: 632,206.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052,545.92 : 1,578,731.40 = 421,494.36 : x
  2. Step 2: Convert to fraction form
    1,052,545.92/1,578,731.40 = 421,494.36/x
  3. Step 3: Cross multiply
    1,052,545.92x = 1,578,731.40 × 421,494.36
  4. Step 4: Simplify right side
    1,052,545.92x = 665,426,381,054.90
  5. Step 5: Solve for x
    x = 665,426,381,054.90/1,052,545.92
  6. Step 6: Final answer
    x = 632,206.51

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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.