Home / 1,029,328.47-1,543,981.44-421,981.26

Finding the Fourth Proportional to 1,029,328.47, 1,543,981.44 and 421,981.26

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Solution

The fourth proportional to 1,029,328.47, 1,543,981.44 and 421,981.26 is: 632,967.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,328.47 : 1,543,981.44 = 421,981.26 : x
  2. Step 2: Convert to fraction form
    1,029,328.47/1,543,981.44 = 421,981.26/x
  3. Step 3: Cross multiply
    1,029,328.47x = 1,543,981.44 × 421,981.26
  4. Step 4: Simplify right side
    1,029,328.47x = 651,531,233,467.81
  5. Step 5: Solve for x
    x = 651,531,233,467.81/1,029,328.47
  6. Step 6: Final answer
    x = 632,967.27

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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.