Home / 1,052,549.92-1,578,737.40-421,498.36

Finding the Fourth Proportional to 1,052,549.92, 1,578,737.40 and 421,498.36

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Solution

The fourth proportional to 1,052,549.92, 1,578,737.40 and 421,498.36 is: 632,212.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052,549.92 : 1,578,737.40 = 421,498.36 : x
  2. Step 2: Convert to fraction form
    1,052,549.92/1,578,737.40 = 421,498.36/x
  3. Step 3: Cross multiply
    1,052,549.92x = 1,578,737.40 × 421,498.36
  4. Step 4: Simplify right side
    1,052,549.92x = 665,435,224,970.66
  5. Step 5: Solve for x
    x = 665,435,224,970.66/1,052,549.92
  6. Step 6: Final answer
    x = 632,212.51

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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.