Home / 1,095,389.02-1,643,065.76-421,616.69

Finding the Fourth Proportional to 1,095,389.02, 1,643,065.76 and 421,616.69

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Solution

The fourth proportional to 1,095,389.02, 1,643,065.76 and 421,616.69 is: 632,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,389.02 : 1,643,065.76 = 421,616.69 : x
  2. Step 2: Convert to fraction form
    1,095,389.02/1,643,065.76 = 421,616.69/x
  3. Step 3: Cross multiply
    1,095,389.02x = 1,643,065.76 × 421,616.69
  4. Step 4: Simplify right side
    1,095,389.02x = 692,743,955,425.99
  5. Step 5: Solve for x
    x = 692,743,955,425.99/1,095,389.02
  6. Step 6: Final answer
    x = 632,418.20

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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.